post-emergent herbicide for broadleaf weeds Q4 Plus Herbicide
SKU: 50046098053
post-emergent herbicide for broadleaf weeds

post-emergent herbicide for broadleaf weeds Q4 Plus Herbicide

Sale price$23.05 Regular price$25.61
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

post-emergent herbicide for broadleaf weeds Q4 Plus HerbicideAll in One Post Emergent Weed Control for Lawns Four active ingredients. One complete weed control solution. Q4 Plus Turf Herbicide is a professional grade, post emergent herbicide designed to control grassy weeds, sedges, and broadleaf weeds in a single application. With four powerful active ingredients working together, Q4 Plus eliminates the need for multiple products, making lawn weed control simple and highly effective. It controls tough weeds

All-in-One Post-Emergent Weed Control for Lawns

Four active ingredients. One complete weed control solution.

Q4® Plus Turf Herbicide is a professional-grade, post-emergent herbicide designed to control grassy weeds, sedges, and broadleaf weeds in a single application. With four powerful active ingredients working together, Q4 Plus eliminates the need for multiple products, making lawn weed control simple and highly effective.

It controls tough weeds like crabgrass and yellow nutsedge while also targeting common broadleaf weeds such as clover, chickweed, and dandelion. Enhanced with fertilizer components to support turf health, Q4 Plus helps your lawn recover quickly and grow thicker after weed removal.

What It Controls

  • Crabgrass
  • Yellow Nutsedge
  • Foxtail
  • Chickweed
  • Clover
  • Dandelion
  • And many other listed grassy and broadleaf weeds (see label for full list)

Why Choose Q4® Plus

  • Four-Active Formula: Controls grassy weeds, sedges, and broadleaf weeds in one product.
  • Crabgrass & Nutsedge Control: Eliminates two of the most difficult lawn weeds.
  • Broadleaf Power: Tackles clover, chickweed, dandelion, and more.
  • Fast Results: Visible weed decline in days.
  • Year-Round Flexibility: Can be applied whenever weeds are actively growing.

Lawn Types Safe for Use

  • Kentucky Bluegrass
  • Tall Fescue & Fine Fescues
  • Perennial Ryegrass
  • Annual Ryegrass
  • Bermudagrass
  • Zoysiagrass

Always verify turf tolerance and local restrictions on the product label before application.

Application Guidelines

  • Apply to actively growing weeds.
  • Use a properly calibrated sprayer for uniform coverage.
  • Avoid mowing 1–2 days before and after application.
  • Do not apply to drought- or heat-stressed turf.
  • Follow labeled rates based on turf type and weed pressure.

Best For

  • Homeowners who want one product to control multiple weed types
  • Lawns with mixed weed infestations
  • Cool-season and warm-season turf
  • Professional turf maintenance programs

Q4® Plus simplifies lawn weed control by combining crabgrass, nutsedge, and broadleaf power into one efficient, professional-grade solution.

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: 50046098053

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Kat L.
Los Angeles, US
★★★★★ 5
Best replacement filter
Size: 9.6" x 11.1" x 2.2"
Great quality replacement for factory filter, fits snug, very easy installation, and the performance is on par.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
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Pam Volden
Lake Worth, US
★★★★★ 5
Best air flow
Size: 9.6" x 11.1" x 2.2"
I have a 2022 ram 1500 four-door. The factory filter from the ram dealer is about $40 but it’s not reusable. That was the only one I found that had good airflow into the cabin. I tried several other brands but the airflow was reduced excessively. The ram filter was 15 mph, most of the other aftermarkets dropped the airflow to about 9 mph. I just installed a K&N reusable filter and the airflow is back up to 15 mph. Great job K&N!!
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Reviewed in the United States on March 27, 2026
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CRF Ken
West Palm Beach, US
★★★★★ 5
Fits Well and Reusable. I'm Happy.
Size: 9.6" x 11.1" x 2.2", Size: 9.6" x 11.1" x 2.2"
For less than the price of 2 disposable FRAM CV11671 cabin filters for my 2019 RAM 1500 and this will last forever. If it gets wet, like I've had happen with the paper throw-away filters due to stuff falling off trees in the spring and clogging cowl area water drains and backing up into filter ( yeah, that's a thing ) and can clean and dry this filter and reuse. Great directions came in the box along with a sticker to point out that this is a lifetime filter so someone doesn't throw it away. Do this yourself. Don't let some auto repair shop talk you into it. I was getting tires balanced recently and heard a quote they gave over the phone of $79 to do this. I don't know what kind of vehicle that was for but this ain't rocket science. Don't get ripped off. Now back to this filter. There is no arrow for air flow so I figure it flows well both ways and just put it in with the K and N logo right side up and facing out. It's not a straight in shot the way RAM positioned the opening for the cabin filter slot but was no big deal. Also realize this isn't a perfect square filter ...It's a rectangle so don't try to shove the fat end in and say it doesn't fit. I haven't noticed any air flow differences with the heating / ac system but some people say they do. I'm just happy I don't have to buy anymore disposable filters and can dry this if it gets wet. The cleaning and refresh spray kit is #99-6000 that comes with a 8oz and 12oz bottle and I'm trying to find that cheaper somewhere for when I do clean this thing.
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Reviewed in the United States on November 20, 2025
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Verified Purchase
TheGrandSyphor
Fort Morgan, US
★★★★★ 5
Can’t go wrong with K&N
Size: 9.6" x 11.1" x 2.2"
So I recently took my pickup in to have some recall work done, half way through the process I got a call from the dealership stating I needed a new air filter and that a new one would cost nearly $60. I chuckled and told then to put the old one back in and I immediately came to Amazon and ordered this cabin filter. I’ve used K&N products in the past and have never been sorry, and that is the case with this lifetime filter. Upon installing this filter I noticed an IMMEDIATE difference in air flow into the cabin, it even smelled better. If this filter ever gets dirty Ira easy to clean and reinstall, paying for itself over time. Do yourself a favor and pick one of these up, you will not be sorry.
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Reviewed in the United States on October 20, 2025
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Verified Purchase
Perfect condition strong material
Charlottesville, US
★★★★★ 5
Perfect fit
Size: 9.6" x 11.1" x 2.2"
Perfect fit on my 2022 jeep wagoner
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Reviewed in the United States on May 20, 2026

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