Skip to content
The perfect blend of well-balanced support of macronutrients to support all grass types.

Liquid Fertilizer - Liquid Lawn Solution


$16.99 - $59.99
$16.99
$16.99 - $59.99
$16.99

PetraTools Max Strength Liquid Fertilizer, Liquid Lawn Fertilizer Concentrate 16-4-8 is a well-balanced lawn fertilizer for all grass types. Its macronutrients provide maximum growth, green grass, and support deep root development. This 2-in-1 nitrogen lawn fertilizer formula provides both quick-release nitrogen for rapid green and growth and slow-release nitrogen for ongoing growth between applications and treats up to 12,800 Sq. Ft. for maintenance or 6,400 Sq. Ft. (using recommended mixture) for NPK deficient grass. 

  • Amazon Best Seller
  • 2 to 3 Days FedEx Shipping
  • Guaranteed Post-Purchase Support
  • American Company


 

AS SEEN IN

INDUSTRY LEADING SUPPORT

You hate buying a tool and getting no support. We get it. We did too. That’s why PetraTools provides industry leading sprayer support.

DIRECT FROM US

No “distributors” or hoops to jump through. Those other guys love to pass you off to their regional “distribution”. We make our sprayers AND support you through your jobs.

30-Day Money Back Guarantee

Your risk-free purchase is guaranteed with 30-day free returns.









Customer Reviews

Based on 8 reviews
100%
(8)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
K
Kurtis
Little bottle

Small bottle with a big punch. Hopefully will clear up my brown spots. Time will see.

J
Jeremy
Better results than Trugreen!

Great product, definitely made a difference in my turf in thickness and color. Fair priced, fast shipping, and 1 gallon covered my 4 acre property. Will be buying again! Saving money from paying Trugreen and better results!

R
Rotasit
Best fertilizer you could ever buy for your lawn!

My lawn loves me. Thank you Petra Tools for making such a great fertilizer for my lawn. It was really struggling in this vegas heat so this concentrated pick me up sure did help boost it up. A little bit surely went a long way. I mixed 5 oz with water in my gallon sprayer and sprayed it evenly all over my lawn before the sunset then gave it a good sprinkle of water to soak it in. Within days it was nice green and luscious. I will definitely be stocking up on this often to keep my lawn happy. I highly recommend this product.

D
Dee
Excellent product!

My lawn went from turning brown to green in a week!

L
Lori Meyer
Small bottle, good for one treatment

Haven't used it yet. Instructions for use on the back of the bottle. I'm trying to get rid of my lawn and help the wild strawberries spread, plus I have lots of bushes scarttered throughout the yard, so we'll see how it affects my plants

12

Family Owned American Company

Located in the heart of Carlisle, Pennsylvania, we are a family owned and operated company that’s dedicated to our products and customers. With warehouse locations in Pennsylvania, Texas and Washington, we ship orders same-day*. *same-day shipping occurs most days Monday – Friday for orders before 10am est.

Featured collection

  • ULV500 pure and clean hypochlorous acid. Trusted by professionals.
    Our ULV500 is a pure hypochlorous acid with no harsh chemicals.
    Save up to 20% Save %
    $59.99 - $5,999.99
    $59.99 - $5,999.99
    $59.99
    $47.99 - $5,999.99
    $47.99 - $5,999.99
    $47.99

    ULV500 Professional Surface Cleaner - 1 Gallon

    The ULV500 Professional Surface Cleaner uses 500PPM (FAC) of Hypochlorous Acid (HOCL) to aggressively clean surfaces inside your home, business, s...

    View full details
    $59.99 - $5,999.99
    $59.99 - $5,999.99
    $59.99
    $47.99 - $5,999.99
    $47.99 - $5,999.99
    $47.99
    Save up to 20% Save %
  • PetraTools backpack foggers is perfect for commercial gardening and home spraying use.
    PetraTools fogger sprayers. Perfect for gardening and home spraying needs.
    Save up to 12% Save %
    $259.99 - $919.96
    $259.99 - $919.96
    $259.99
    $229.99 - $809.56
    $229.99 - $809.56
    $229.99

    Electric Backpack ULV Fogger

    PetraTools Backpack Fogger Sprayer is designed for various applications such as home and commercial cleaning, fertilizer and herbicide application...

    View full details
    $259.99 - $919.96
    $259.99 - $919.96
    $259.99
    $229.99 - $809.56
    $229.99 - $809.56
    $229.99
    Save up to 12% Save %
  • Save up to 12% Save %
    $219.99 - $879.96
    $219.99 - $879.96
    $219.99
    $219.99 - $774.36
    $219.99 - $774.36
    $219.99

    HD4000 Battery Backpack Sprayer - 4 Gallon

    PetraTools HD4000 Backpack Sprayer supports all your spraying needs thanks to its multiple nozzle attachments and reliable battery. It can spray u...

    View full details
    $219.99 - $879.96
    $219.99 - $879.96
    $219.99
    $219.99 - $774.36
    $219.99 - $774.36
    $219.99
    Save up to 12% Save %
  • Save 33% Save %
    $599.99
    $599.99 - $599.99
    $599.99
    $399.99
    $399.99 - $399.99
    $399.99

    HD5000 Battery Sprayer With Custom Cart - 6.5 Gallon

    PetraTools HD5000 Cart Sprayer - 6.5 Gallon makes your spraying fast and convenient, thanks to its multiple nozzle attachments that can spray up to...

    View full details
    $599.99
    $599.99 - $599.99
    $599.99
    $399.99
    $399.99 - $399.99
    $399.99
    Save 33% Save %
  • Save 25% Save %
    $599.99
    $599.99 - $599.99
    $599.99
    $449.99
    $449.99 - $449.99
    $449.99

    HD5000 Battery Sprayer With Reel Cart - 6.5 Gallon

    PetraTools HD5000 6.5-Gallon with Reel Cart makes your spraying fast and convenient, thanks to its multiple nozzle attachments that can spray up to...

    View full details
    $599.99
    $599.99 - $599.99
    $599.99
    $449.99
    $449.99 - $449.99
    $449.99
    Save 25% Save %
Shop collection