Pay in installments of $5.80 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 24 - Jul 29
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
knockout herbicide Knockout Aquatic Herbicide (20L)Knockout Aquatic Herbicide (20L) Knockout Aquatic Herbicide is a low toxicity glyphosate approved for use in and around waterways. The chemical is mixed with a surfactant (wetting agent) that makes it kinder on aquatic environments than regular glyphosate (NOT approved for aquatic environments). This product has better results on taller plants and grasses like cumbungi and spike rush. Note: this product is NOT appropriate for submerged weeds because
Knockout Aquatic Herbicide (20L)
Knockout Aquatic Herbicide is a low-toxicity glyphosate approved for use in and around waterways. The chemical is mixed with a surfactant (wetting agent) that makes it kinder on aquatic environments than regular glyphosate (NOT approved for aquatic environments). This product has better results on taller plants and grasses like cumbungi and spike rush.
Note: this product is NOT appropriate for submerged weeds because the chemical becomes inert when it comes into contact with water. If you are using it on floating weeds/leaves, wait for a calm day when the wind and wave action is low. We don't recommend using Knockout on azolla or duck weed, try the Aquatic Weed Killer instead.
Knockout Aquatic Herbicide is suitable for the following aquatic weeds:
- All grasses
- Alligator weed
- Cumbungi
- Phragmites
- Common reed
- Rushes
- Sedges
- Water hyacinth
- Water couch
- Water lettuce
- Waterlily
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.1 ★★★★★
Based on 19 reviews
Sort
Product Reviews
★★★★★ 3
Calidad de las camisas
Color: A White, Size: Medium
I had already bought one shirt, so this time I bought two more. The light blue one is the same quality as the one I bought the first time. But the white one wasn't the same quality. It was also a different shade of white. They should try to maintain consistent quality across the board.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
★★★★★ 5
I recommend this company
Color: Lavender, Size: Large
very nice shirt, great fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
Long sleeve ‘s light purple and beautiful what was what my wife said.
Color: Lavender, Size: Large
Love it!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 1
Won't let me give one star. AVOID THESE SHIRTS
Color: Dark Blue, Size: X-Large
They look okay on first wearing but after washing, you can't get the wrinkles out even with an iron. Sorry I bought these. Won't again. Really, the worst shirts I have ever bought.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
★★★★★ 5
Perfect fit
Color: Navy Blue, Size: Large
I bought 2 shirts for summer and have already worn, washed and dried them. They truly are wrinkle resistant. I'm a 6-ft 175 lb male and Large fit me perfectly. The quality seems good, especially for their price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026