SKU: 40560202271
deadbolt herbicide

deadbolt herbicide Prime Source

Sale price$24.24 Regular price$26.93
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Ships within 48 hours · Estimated delivery Nov 11 - Nov 16

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Description

deadbolt herbicide Prime SourceQuintessential takes quinclorac performance to the next level and is an excellent choice if you are going after crabgrass that has invaded your lawn. This is a selective, post emergent herbicide that can be safely applied to many types of turf to control a variety of broadleaf and grassy weeds, including crabgrass, foxtail, signal grass, and torpedo grass. Up to 90 day control for both broadleaf and grassy weeds Active Ingredient: Dimethylamine salt

Quintessential™ takes quinclorac performance to the next level and is an excellent choice if you are going after crabgrass that has invaded your lawn. This is a selective, post-emergent herbicide that can be safely applied to many types of turf to control a variety of broadleaf and grassy weeds, including crabgrass, foxtail, signal grass, and torpedo grass.

  • Up to 90-day control for both broadleaf and grassy weeds
  • Active Ingredient: Dimethylamine salt of Quinclorac 18.92%
  • Unique, patent-pending formulation powered by H-Value Technology, a proprietary performance additive that increases efficacy
  • Great for controlling crabgrass, including the mid-tiller stage of growth
  • Available in multiple sizes *

Product Description:

Quintessential alters the formulation of quinclorac in a way that improves the absorption of the product into the plant. That means faster activity and higher rate load in the targeted weed, as well as improved performance in drought stress or rainfast situations. And unlike any other herbicide on the market, Quintessential demonstrates improved control of crabgrass at all growth stages, including the problematic 3-5 tiller stage. 

This product can be applied to both residential and non-residential turf. Selective control means it doesn’t harm turf.

Quintessential can be applied from seven days prior to seeding and up to twenty-eight days after selected weeds have emerged. The use of methylated seed oil, such as Duo Stick Select is recommended to enhance the effectiveness of the product. If you cannot get methylated seed oil, a non-ionic surfactant can be used.

Target pests include Barnyardgrass, Black medic, Foxtails, Clover, Crabgrass (large & smooth), Daisy, Dandelion, Morningglory, Wild Violet, and more.

*Size options and coverage: 

  • 7.5 oz bottle =  covers up to 5,000 sq ft
  • 64 oz bottle = covers up to 42,600 sq ft

Application Information:

This is a liquid concentrate product you mix with water in a battery sprayer or pump sprayer. **You will also want to utilize a surfactant along with this product.

Quintessential can be used on all cool-season and some warm-season grasses; see the list below:

  • Cool-Season Lawns - Kentucky Bluegrass, Turf Type Tall Fescue (all fescues), Ryegrass.
  • Warm-Season Lawns - Bermuda, Zoysia,
  • Hybrid Bermuda could see some collateral stunting of growth

NOTE: Not for use with Centipede, Bahia, St Augustine grasses

 Coverage

7.5 oz bottle covers up to 5,000 sq ft at the rate of 1.45 oz per 1,000 sq ft

64 oz bottle covers up to 42,600 sq ft at the rate of 1.45 oz per 1,000 sq ft

Application  Details

Mix 1.45 oz per gallon of water in a backpack/pump sprayer and spray that evenly across 1,000 sq ft of lawn

In most cases, you should only have to spot spray or zone spray unless you have a REALLY big problem with crabgrass!

Water-In  Instructions

No watering or rainfall within 24 hours after application

If rainfall does not occur in 2 to 7 days after application, irrigation of at least 1/2 inch is desirable.

Product Resources:

Label/SDS: Quintessential Info
Package Includes:  (1) 7.5 oz bottle or (1) 64 oz bottle, based on selection
Storage: Store in a cool dry place away from direct sunlight. The product will store for 2 years under normal conditions.

Shipping Information:

Shipping Costs

Included for most states within the U.S.
NO P.O. Boxes

State Restrictions
Alaska (AK), California (CA) and Hawaii (HI)
Stickers

Sorry, no stickers with this item

Typical Delivery Time

4 - 7 business days

Product Type

Liquid Concentrate

Cancel | Return | Exchange

All sales are final; no cancellations, returns, or exchanges

 

Some products may not be registered for sale or use in all states or counties and/or may have state-specific use requirements. This information is for reference only. It is the responsibility of the user to verify the product is registered and appropriate for use in a given state.


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: 40560202271

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4.3 ★★★★★
Based on 21 reviews
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M
Verified Purchase
Myong min
Omaha, US
★★★★★ 5
Thank yuo
Size: 5424WS, Style: Workshop
It fit my car perfectly, Lexus NX300
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
M
Verified Purchase
mfair
West Palm Beach, US
★★★★★ 5
Great replacement set of wiper blades for 2024 CR-V! Work great & easy replacement!
Size: 24"+19"+10"(Top Lock)
Excellent wiper blade set for my 2024 Honda CR-V - a perfect fit! Easy to replace the front blades and these are very quiet and do a great job with no streaking at all. Instructions included for the front blades are good. Either lost or couldn't find the rear window instructions, so went on YT for a quick video (for removing the old blade - installation is super easy) and it was an easy replacement. Replaced OEM blades, and these are every bit as good and the price is good. Old blades lasted a couple years, don't think I'll wait that long this time - these are nice blades and easy to replace and worth replacing every year. Very smooth, no streaking, quiet... in short they work great! Recommend for your CR-V - per above they're as good or better than OEM blades. New year with new wiper blades!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 29, 2025
R
Verified Purchase
robert johnson
Lake Worth, US
★★★★★ 5
Easy installation
Size: 26"+16"(Top Lock)
Perfect fit and just in time. Went to 4 places and no one has this style. As good as the dealer and a third of the price. Very happy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
R
Verified Purchase
Retired Appliance Dude
New York, US
★★★★★ 5
Much higher quality then I ever expected at a great price
Size: 26"+17"+14"B(U/J Hook)
Perfect fit on my 2023 Mazda 3, they look and install exactly like the original OEM wipers but Mazda 3 can be a little tricky to install but if you search on the internet you will find plenty of helpful videos. They work really well without streaking or noise.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
A
Verified Purchase
Amazon Customer
San Leandro, US
★★★★★ 5
Excellent front wipers, rear slightly shorter than expected
Size: 22"+21"+11"(U/J Hook), Size: 22"+21"+11"(U/J Hook)
I purchased the 22", 21", and 11" windshield wiper blade set for my 2017 Jeep Grand Cherokee. The front windshield wipers (22" and 21") work perfectly—smooth, quiet, and they clean the glass very well with no streaks. Regarding the rear wiper (11"), it does work properly and gets the job done. However, it is slightly shorter than the one I previously had installed. To be fair, I did not measure my old rear wiper, but it appears the one on my vehicle was a 12" blade, even though this listing specifies 11". Overall, I’m satisfied with the performance, especially for the front wipers. Just keep in mind that the rear blade may be shorter than what you currently have installed, depending on your setup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026

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