SKU: 41780403245
nuna double stroller adapter

nuna double stroller adapter Nuna DEMI Next + Rider Board Stroller Caviar

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Description

nuna double stroller adapter Nuna DEMI Next + Rider Board Stroller CaviarNuna DEMI Next TWIN Stroller + 2 PIPA RX PIPA Aire RX Car Seats + Rider Board Travel System The innovative and stylish Nuna DEMI Next is a convertible stroller that offers a multitude of configurations to accommodate the diverse needs of growing families. With clever compatibility and unsurpassed product quality and functionality, Nuna has designed multiple products that can be bundled to create flexible travel systems as your family's needs change.

Nuna® DEMI™ Next TWIN Stroller + 2 PIPA RX/PIPA Aire RX Car Seats + Rider Board Travel System

The innovative and stylish Nuna DEMI Next is a convertible stroller that offers a multitude of configurations to accommodate the diverse needs of growing families. With clever compatibility and unsurpassed product quality and functionality, Nuna has designed multiple products that can be bundled to create flexible travel systems as your family's needs change. This Nuna Travel System Bundle is perfect for twins and includes the stylish and multifunctional Nuna DEMI Next stroller with your choice of either two (2) Nuna PIPA Aire, Nuna PIPA RX, or Nuna PIPA Aire RX premium Infant Car Seats. This twin bundle also includes the Rider Board accessory for tag-a-long passengers and an additional sibling seat that transforms the DEMI Next into a comfy ride for two little passengers.

What’s Included:

  • Stroller frame
  • Stroller seat
  • Additional Sibling seat
  • Rider board
  • Infant car seat post adapters
  • Fenders
  • Rain cover
  • Two (2) Nuna PIPA infant car seats of your choice (either the PIPA Aire, PIPA RX or PIPA Aire RX)
  • Two (2) Nuna PIPA Series car seat bases (RELX Base for PIPA RX or PIPA Aire RX)
  • Two (2) DEMI Next ring car seat adapter
  • Two (2) Car Seat LATCH guides
  • Two (2) GOTS organic cotton infant inserts and harness cover sets (with PIPA Aire RX only)
  • Nuna's Manufacturer Warranty from defects: 2 years

DEMI Next Stroller:

Building upon the tremendous success and popularity of the original DEMI Grow Stroller, the clever folks at Nuna have delivered a new game-changer with the introduction of the innovative, newly-improved Nuna DEMI Next Stroller.

This next-generation premium stroller comes with an included Rider Board accessory for tag-a-long passengers, and is carefully crafted to grow seamlessly along with your family through all of life’s unpredictable possibilities. The DEMI Next is incredibly versatile, allowing you to easily convert from a single stroller to a double or twin, while delivering over 25 different modes of flexible riding possibilities.

With a creative, modular design, the DEMI Next is compatible with all Nuna series infant car seats and can easily be combined with several optional components. The add-on sibling seat quickly transforms the DEMI Next stroller into a comfy ride for two little passengers, while the convenient bassinet (sold separately) allows you to move effortlessly from stand to stroller, while maintaining the ultimate lie-flat comfort for the little one.

Packed with high-end features and loaded with sensible functionality, the Nuna DEMI Next is thoughtfully constructed with style, comfort and convenience in mind. It is the ultimate companion for modern family living, designed to grow with next-level possibilities.

DEMI Next vs. DEMI Grow Comparison:

Nuna has delivered several key improvements for the DEMI Next when comparing it to the first-generation DEMI Grow stroller.

DEMI Next comes with new Rider Board included
The clever new Rider Board creates additional flexibility and travel options for growing families. Included with the purchase of the new DEMI Next Stroller, the Rider Board easily attaches to the stroller and provides a safe riding platform for little passengers up to 50 lbs. With two swivel wheels for easy maneuvering, the Rider Board easily folds with the stroller and can be flipped into the stroller when not in use.

Larger Storage Basket
Making the most of your family journeys can often mean having enough room for all your essential goodies. The DEMI Next more than doubles the underseat basket capacity from 10 lbs. to 22 lbs., providing some serious, next-level space for all your essentials while on the go.

Redesigned Canopy
The updated Aire protect canopy™ now boasts ventilation panels and a full privacy cover all in one product. The built-in, airy mesh privacy drape and ventilation panels in the canopy provide for optimal airflow and sustained comfort.

New 4-Position Recline
Easily adjust the recline with one hand to one of four recline positions available with the DEMI Next. Provide maximum comfort for the little one with an upright backrest angle for comfortable, just-right rides.

New Footrest Design
One-hand adjustable calf support and the new footrest design provides optimal comfort and accommodates growing little ones.

Larger Front Wheels
The front wheel size has been increased by 1 inch to 8.5 inches on the DEMI Next to provide for optimal maneuverability and flexibility. The wide, swivel-lock front wheels are tough, foam-filled and ready for any terrain.

Usage From Birth
Furthering the DEMI Grow usage recommendation, the DEMI Next can be utilized from birth to 50 lbs.

DEMI Next Stroller Modular Options:

With the addition of the included Rider Board, the DEMI Next is arguably the most versatile stroller on the market. With an incredibly flexible and adaptable design, the new DEMI Next can be configured into an amazing 25 possible modular combinations in both single and double modes. The Nuna DEMI Next is also compatible with all Pipa series infant car seats and works seamlessly with the additional DEMI Next Sibling Seat and Bassinet (sold separately).

Stroller for One Child: Enjoy different strolling modes with the little one depending on the desired activity or mood of your passenger. Utilize the Stroller Seat or your Nuna Pipa series infant car seat in either parent-facing or forward-facing mode, or simply pop on the handy and super comfortable Bassinet, to let baby enjoy a snooze on the go.

Double Stroller for a Toddler and a Newborn: Expecting a new bundle of joy? The DEMI Next is easily transformed from a single to a double stroller to make way for the new little one. Simply add a Sibling Seat and you are ready for adventures with double the fun. You have the flexibility to position the newborn in the upper seat closer to you to provide added attention, while your toddler can stroll comfortably in the lower seat while they gain independence.

Double Stroller for Twin Babies: Preparing for twin bundles of joy? The DEMI Next has you double-covered. Stroll your twins in style with either two Pipa infant car seats or two Bassinets, and accommodate both your little passengers comfortably and safely as they grow and their shifting needs change

Tag-a-long with the Rider Board: Create additional flexibility and travel options for your growing family and provide a cool ride for a toddler up to 50 lbs. The Rider Board easily attaches to the back of the stroller and gives a safe platform for your older tag-a-long passenger.  

Stylish Color Options:

The Nuna DEMI Next will be available in three stylish color options that are sure to make a statement, whatever your fashion preference:

  • Caviar (Black fabrics, black frame, saddle brown leatherette handles)
  • Granite (Grey fabrics, black frame, saddle brown leatherette handles)
  • Biscotti (Tan fabrics, black frame, dark brown leatherette handles)

Key Features DEMI Next Stroller:

  • 25+ modes–convert from a single stroller to a double or twin and use the included rider board or sibling seat accessory (sold separately)
  • Super easy to fold, flip the seat, or convert to bassinet or car seat mode
  • Four recline positions and an upright backrest angle for just-right rides
  • Easily adjust recline with just one hand
  • Forward and rear-facing seat options
  • One-touch rear-wheel braking system for scuff-free shoe control
  • Custom dual suspension™ provides a nice, smooth ride
  • Wide, swivel-lock front wheels make it a master of smooth riding motion
  • One-hand adjustable calf support and footrest to accommodate growth
  • Self-guiding MagneTech secure snap™ buckles automatically lock into place
  • Quick-release 3 to 5-point harness makes it easy to fasten them in
  • Fenders and built-in hub caps protect from dirt and debris
  • Easily removable premium Merino wool insert provides ultra-soft comfort
  • Eye-to-eye connection is easier with the elevated seat level
  • Rotating and removable armbar fits kids of all sizes
  • Water-repellent UPF 50+ Aire protect canopy™ protects from the elements
  • Built-in privacy drape and ventilation panels in the canopy for ideal airflow
  • All-season seat keeps baby cozy in winter and easily converts to mesh in summer
  • Tires are tough, foam-filled, and ready for any terrain
  • No-rethread harness makes it easy to adjust for comfort and growth
  • Large basket with 22 lb. capacity holds everything you need for the journey
  • Adjustable pushbar with luxe leatherette accents to accommodate varying heights
  • Included rain cover for when the weather doesn't cooperate
  • Compatible with the DEMI next sibling seat and DEMI next bassinet

Key Features DEMI Next Rider Board:

  • Creates more riding options for family travels made easy
  • Cleverly positions your child between your arms for closeness
  • Easily attaches to the stroller's lower seat mounts
  • Two swivel wheels for easy maneuvering
  • Holds up to 50 lbs.
  • Flips into the stroller basket when not in use
  • Folds with stroller

Choose the Car Seat That's Right For You:

The Nuna DEMI Next stroller can be quickly converted into a convenient travel system. The travel system on this listing includes your choice of either the Nuna Aire, the Nuna PIPA RX or the Nuna PIPA Aire RX infant car seat. All three of these car seats offer unsurpassed safety standards, lightweight and stylish design and premium materials that are free of chemical flame retardants. The chart below provides a snapshot of the key differences between the three PIPA car seats available for this travel bundle:

Key Features Nuna® PIPA™ Aire Infant Car Seat:

  • The PIPA aire is both ultra-portable and seriously protective
  • PIPA aire is the lightest in the PIPA series infant car seat lineup
  • One-handed vehicle and stroller release for easy in an outs
  • Fabrics and inserts are conveniently machine washable
  • Belt path for vehicle belt installation
  • FAA certified for aircraft use with or without a base
  • Connects with all Nuna strollers (and their adapters as appropriate) to create a stylish travel system
  • Features Aeroflex™ foam that is cleverly lightweight, resilient, and minimizes force transferred to baby
  • Steel-reinforced True lock™ base installation makes set up swift, simple, and safe
  • Side Impact Protection (SIP) for ultimate baby safe keeping
  • The deep seat design creates a cocoon-like space, ensuring a better fit and comfortable car seat for your baby.
  • 5-point harness keeps baby’s travels secure
  • Tailor tech™ memory foam headrest provides a comfortable custom fit
  • Removable infant head and body inserts nestle baby in comfort and security
  • UPF 50+ canopy with flip-out eyeshade protects from sun exposure
  • The iconic Sky drape™ provides baby with ultimate privacy for quiet moments
  • Luxe leatherette carry handle for more secure gripping
  • Exposed aerospace aluminum handle adds a contemporary aesthetic and enhances the seat's intuitive functionality
  • Soft yet durable micro-knit fabric for refined style and casual warmth
  • From fabric to foam and beyond each element is smartly sourced to be both flame resistant and contain no added fire-retardant chemicals making it safer for baby

Key Features Nuna® PIPA™ RX Infant Car Seat:

  • From fabric to foam and beyond, each element is smartly sourced to be both flame resistant and contain no added fire retardant chemicals
  • Side impact protection for ultimate baby safe keeping
  • Comfy organic jersey insert is removable for growing babies
  • Integrated harness holders help when buckling baby in
  • Luxe leatherette accented carry handle. Tote elegantly with ease
  • Five point harness keeps little ones in place
  • Two-piece removable infant insert + head support. Customize to their individual shape and get a perfect fit right from birth
  • Mesh peek-a-boo window in canopy
  • Heavy duty shell is super resilient yet lightweight
  • Lightweight carry handle is ergonomically designed to tote with ease
  • FAA certified for aircraft use
  • True lock™ installation makes set up swift, simple and above all – safe
  • 5 second install
  • Crumple zone within the stability leg absorbs impact and minimizes force transferred to baby
  • Colored installation indicators confirm correct connections to the vehicle
  • Bubble free recline angle guides clearly confirm the perfect riding angle
  • Low profile base for easier loading of infant seat
  • Open belt path for easier install
  • Belt guides
  • Anti-rebound panel
  • Automatic rigid latch storage
  • Extra convenient stability leg storage with lock
  • Steel reinforced true lock™ rigid latch
  • Lock off with easy access belt path
  • Indicators on rigid latch turn green when clicked to vehicle anchor points
  • Indicators on stability leg turn green when in proper contact with vehicle floor
  • GREENGUARD Gold Certified: Products that have achieved GREENGUARD Gold Certification are scientifically proven to meet some of the world's most rigorous third-party chemical emissions standards, and certified to not contribute to indoor air pollution or chemical exposure

Key Features Nuna® PIPA™ Aire RX Infant Car Seat:

  • FAA certified for aircraft use with or without a base
  • Connects with all Nuna strollers to create a stylish travel system*
  • 5-second steel-reinforced True lock™ installation makes set up swift, simple, and safe**
  • Side Impact Protection (SIP) for ultimate baby safekeeping
  • Open belt path with lock off secures lap and shoulder belt
  • Features Aeroflex™ foam that is cleverly lightweight, resilient, and minimizes force transferred to baby
  • The deep seat design creates a cocoon-like space, ensuring a better fit and comfortable car seat for your baby.
  • 3-position height-adjustable headrest and 5-point harness keeps little ones in place
  • Removable infant head and body inserts nestle baby in comfort and security
  • Tailor tech™ memory foam seat panel and headrest provides a comfortable custom fit
  • UPF 50+ canopy with 2 positions and a flip-out eyeshade protects from sun exposure
  • The iconic Sky drape™ provides baby with ultimate privacy for quiet moments
  • Soft yet durable micro-knit fabric for refined style and casual warmth
  • Super-resilient top-of-the-line plastics for a heavy-duty secure shell
  • Exposed aerospace aluminum handle adds a contemporary aesthetic and enhances the seat's intuitive functionality
  • Luxe leatherette carry handle for more secure gripping
  • From fabric to foam and beyond each element is smartly sourced to be both flame-resistant and contain no added fire-retardant chemicals making it safer for baby
  • Infant head and body inserts are made of environmentally friendly Merino wool and TENCEL™ lyocell fiber blend that is soft, naturally controls moisture, and is environmentally friendly
  • GREENGUARD Gold Certified to meet some of the world's most rigorous third-party chemical emissions standards, and certified to not contribute to indoor air pollution or chemical exposure
  • Additional GOTS organic cotton infant insert and harness cover set

Upon selecting a specific car seat on the order page, your corresponding car seat base will be identified and automatically included with your travel bundle.  

  • Nuna® PIPA™ Aire Infant Car Seat + PIPA Series Base
  • Nuna® PIPA™ RX Infant Car Seat + RELX base
  • Nuna® PIPA™ Aire RX Infant Car Seat + RELX base

To help you make an informed choice, we have also outlined the key differences between the PIPA Series base and the RELX base in the comparison chart below: 

Key Features Nuna® PIPA™  Series Base:

  • 5-second install with two easy and instant steps.  Please note to always refer to the product instruction manual. Under no circumstances should this information be used to replace the car seat instruction booklet
  • True lock™ rigid latch is 50% stronger than a typical belt latch
  • Steel stability leg helps minimize forward rotation during impact by up to 90% when compared to a system that is not using a stability leg
  • Colored installation indicators confirm correct connections to the vehicle and car seat to base
  • Bubble level indicators help to minimize user error
  • Super-resilient top-of-the-line plastics for a heavy duty, secure shell
  • Anchor latch guides make it easy to locate and install on lower anchor bars

Key Features Nuna® PIPA™ RELX Base:

  • Crumple zone within the stability leg absorbs impact and minimizes force transferred to baby
  • Colored installation indicators confirm correct connections
  • Low profile base for super easy loading
  • Easy vehicle seat belt install provides options
  • Latch and stability leg neatly store away when not in use
  • Anchor latch guides make it easy to locate and install on lower anchor bars

Specifications:

DEMI Next Stroller:

Recommended Use:

  • Weight: Birth to 50 lbs.
  • When using the stroller frame with the bassinet or infant carrier, refer to the child usage requirements listed in those instruction manuals.
  • Product Weight: 26 lbs. (without winter seat, canopy, armbar, or rider board)
  • Carton Weight: 49.2 lbs.
  • Open Dimensions: H43.5 in. x L39.5 in. x W24 in.
  • Folded Dimensions: H35 in. x L23.5 in. x W24 in.
  • Nuna's Manufacturer Warranty from defects: 2 years

PIPA Aire Infant Car Seat:

Recommended Use: 

  • 4 to 30 lbs, and 16 to 30 in.
  • Car seat dimensions  L 27.25 in  W 17.5 in  H 23 in 
  • Weight: 6 lbs (without canopy and inserts - canopy and inserts approx. 1.8 lb)

PIPA RX Infant Car Seat:

Recommended Use: 

  • 4 to 32 lbs, and 16 to 32 in.
  • Car seat dimensions:  L 25.2 in  W 17.5 in  H 23 in 
  • Weight: 7.6 lbs (without canopy and inserts - canopy and insert approx. 1 lb)

PIPA Aire RX Infant Car Seat:

Recommended Use:

  • 4 to 30 lbs, and 16 to 30 in.
  • Car seat dimensions: L 27.25 in W 17.5 in H 23 in
  • Weight: 6.2 lbs (without canopy and inserts - canopy and inserts approx. 2.2 lb)

Compatibility:

  • DEMI Next stroller is compatible with all Nuna series infant car seats
  • DEMI Next stroller is compatible with both DEMI grow Bassinet and DEMI grow Sibling Seat.
  • New Rider board is only compatible with the Demi Next stroller and not sold separately. There are no future plans to market as an accessory.
  • Bassinet: For use on DEMI bassinet stand and DEMI series strollers only

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 41780403245

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Mayday295
Birmingham, US
★★★★★ 5
Amazing little robot with roller mops - Eufy has come a long way
Upgraded from an old Eufy unit that would bounce around all the objects in my house at random and did a mediocre job, and needed to be emptied daily due to the amount of dog hair, not to mention detangling the thing daily as well. But worked ok while we had it. This unit has been an enormous upgrade, not only does it not get stuck on every sock in my house, but it actually mops my floors! My wife didn't think it would make that big of a difference but it's been a huge lifesaver and quality of lifesaver especially. Even with all the dog hair the unit anti-tangle brush does an excellent job with maintenance one to two weeks to perform some basic detangling which is much easier to do now as well given the parts and how they come apart. Personally I like the proprietary detergent, it seems to be going a long way, and I know it's the perfect amount for what the unit needs which means less work for me when I need to refill the water tanks. Also the scheduling features are nice in that it can vacuum daily and mop every few days since I don't need that done daily. My only feedback so far that would be negative at all are 1) there is one particular spot in our house at my standing desk where the robot gets stuck on occasion. It seems like it could be fixed easily with a software update to avoid climbing over something that it can't get down from. 2) The water tanks are not sealed at the top so you can't set them down once you fill them or else you'll spill water everywhere. Makes it kind of inconvenient to work with, but knowing that makes it easy to avoid. 3) the find my robot button is hidden deep in the app it should be one of the first things you see. When it got stuck somewhere it took me longer to find the button than it did to find the robot.
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Reviewed in the United States on May 28, 2026
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mbevier
Whiting, US
★★★★★ 1
Arrived covered in water, brush errors when trying to run
Unit came completely covered in water. Minimal care taken with this "like-new" unit, had been leaking water into the plastic bag. Even with that, I gave it the benefit of the doubt and still finished setting it up. Within the first 30 seconds it was already reporting an error with one of the brushes. They would barely spin, stop, and fail. Even after thorough cleaning, the error persisted. The unit also struggled to find the home dock even when placed next to it, eventually erroring out as well. Given how many issues this had within 5 minutes of opening the like-new box, I returned this for a refund.
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Reviewed in the United States on May 26, 2026
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Valeria
West Palm Beach, US
★★★★★ 5
Great model, it’s basically new !!
It was basically new. Everything was still sealed and in its original box and packaging. After using it for a few days it I can honestly say it’s been great at keeping the floors clean, I love it!!
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Reviewed in the United States on May 21, 2026
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Amethyst Cam
San Leandro, US
★★★★★ 5
Good quality and good value
Size: 2+6+1+12 Pack
this is a great deal and so nice to have on hand. I like being able to just grab replacement parts as needed and not have to place orders for them. It gives peace of mind to know I already have them on hand. much more affordable to buy all at once too 
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Reviewed in the United States on June 29, 2025
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Jack J
Dallas, US
★★★★★ 5
Works well
Size: 1+6+6 Pack
Fit perfect
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Reviewed in the United States on March 11, 2026

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