---
product_id: 33257685
title: "Roundup Custom 53.8% Glyphosate for Aquatic & Terrestrial Use 2.5 gallons"
brand: "roundup"
price: "$454.84"
currency: USD
in_stock: true
reviews_count: 8
category: "Roundup"
url: https://www.desertcart.us/products/33257685-roundup-custom-53-8-glyphosate-for-aquatic-and-terrestrial-use
store_origin: US
region: United States of America
---

# Dual aquatic & terrestrial use Effective on 190+ weed species Eco-friendly packaging Roundup Custom 53.8% Glyphosate for Aquatic & Terrestrial Use 2.5 gallons

**Brand:** roundup
**Price:** $454.84
**Availability:** ✅ In Stock

## Summary

> 🌿 Dominate weeds everywhere — land or water, the power is in your hands!

## Quick Answers

- **What is this?** Roundup Custom 53.8% Glyphosate for Aquatic & Terrestrial Use 2.5 gallons by roundup
- **How much does it cost?** $454.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/33257685-roundup-custom-53-8-glyphosate-for-aquatic-and-terrestrial-use)

## Best For

- roundup enthusiasts

## Why This Product

- Trusted roundup brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Broad-Spectrum Power:** Targets over 190 species of emerged weeds, brush, and vines for total vegetation management.
- • **Eco-Conscious Packaging:** Sustain your green spaces with environmentally responsible packaging that aligns with your values.
- • **Customizable Formulation:** Choose your ideal surfactant, tank mix, or herbicide blend tailored to your specific needs.
- • **Trusted Across Environments:** Perfect for aquatic, forestry, right-of-way, industrial, turf, ornamental, and habitat restoration sites.
- • **Versatile Application Mastery:** Control weeds and brush seamlessly on land or water with unmatched flexibility.

## Overview

Roundup Custom 53.8% Glyphosate is a professional-grade, non-selective herbicide effective against more than 190 species of weeds and brush. Designed for both aquatic and terrestrial environments, it offers customizable application options with surfactants and tank mixes. Ideal for diverse use sites including forestry, turf, and habitat restoration, it comes in eco-friendly packaging and is pet- and child-safe when used properly.

## Description

Roundup Custom Herbicide by Monsanto is a non-selective aquatic herbicide and is highly effective on more than 190 species of emerged weeds, including a wide range of annual and perennial grasses, broadleaf weeds, and sedges. Roundup Custom has excellent application and use flexibility for weed and brush control by land or by water. Roundup Custom Herbicide is pet and child friendly if applied properly.

Review: It's now Aqua Master - First note the name has changyro Aqua Master. I almost returned the bottle because I ordered RoundUp Custom, but the bottle that showed up is Aqua Master. Bayer has changed the name. It's the same product with the same EPA Registration number (which means it comes from the same spigot at the factory). It works well. You do need to add a surfactant and there are not a lot of those labeled for aquatic use. We've been using Alligare 90 with good results.
Review: Use with a surfactant for best results. - Works great as usual. I usually use 2 oz of roundup concentrate to 1 gallon of water along with 1 ounce of surfactant. The surfactant allows the roundup to penetrate the leaves better.

## Features

- Application and use flexibility for weed and brush control by land or water
- Offers the flexibility to choose the right surfactant, tank mix or custom herbicide blend for the job at hand
- Non-selective and highly effective on more than 190 species of emerged weeds, brush and vines
- Excellent fit for all aquatic, forestry, right-of-way, industrial, turf, ornamental and habitat-restoration use sites, especially where weeds and water meet
- Eco-friendly packaging

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00E4BLAG4 |
| Best Sellers Rank | #57,065 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #202 in Weed Killers |
| Brand | Roundup |
| Customer Reviews | 4.6 4.6 out of 5 stars (302) |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 27 pounds |
| Liquid Volume | 2.5 Gallons |
| Manufacturer | BRANDT |
| Product Dimensions | 17 x 11 x 15 inches |
| Unit Count | 320 Fluid Ounces |

## Product Details

- **Brand:** Roundup
- **Item Form:** Liquid
- **Item Weight:** 27 Pounds
- **Liquid Volume:** 2.5 Gallons
- **Manufacturer:** BRANDT

## Images

![Roundup Custom 53.8% Glyphosate for Aquatic & Terrestrial Use 2.5 gallons - Image 1](https://m.media-amazon.com/images/I/41JJuJUW4qL.jpg)
![Roundup Custom 53.8% Glyphosate for Aquatic & Terrestrial Use 2.5 gallons - Image 2](https://m.media-amazon.com/images/I/81ZXiqbP-bL.jpg)

## Questions & Answers

**Q: This is much cheaper for twice the amount compared to roundup concentrate.  Does  this get diluted by same amount as the concentrate?  not in specs**
A: I am not certain of the mix ratio for the concentrate, but this does come with a booklet explaining the mix ratios for different applications.  I have been mixing 8 ounces of this product plus 4 ounces of additional surfactant (dish soap) then filling my 1 gallon sprayer with water.  Within about 3 days even if it rains, everything starts to turn brown.

**Q: Does anyone know if this is effective against duckweed?  This stuff covers my pond every year!**
A: i don't know about duck weed, I do know it kills anything I spray it on.  double the mixture ratio and give it a try, I would be surprised if it didn't work.  this stuff a few years ago was $220 for the same amount 2.5 gallons.  Just buy it and try.

**Q: What Mixing ratio for Lilly pads ?**
A: 1-2 ounces per gallon and the Fine Mist oil added to the water helps stick the mixture on the leaves.  JJ

**Q: Will this kill willows and cottonwoods?**
A: I don't have experience with those species. In my experience, this product kills everything; Polaris Nufarm Herbicide Imazapyr 27.7%

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's now Aqua Master
*by J***P on October 23, 2025*

First note the name has changyro Aqua Master. I almost returned the bottle because I ordered RoundUp Custom, but the bottle that showed up is Aqua Master. Bayer has changed the name. It's the same product with the same EPA Registration number (which means it comes from the same spigot at the factory). It works well. You do need to add a surfactant and there are not a lot of those labeled for aquatic use. We've been using Alligare 90 with good results.

### ⭐⭐⭐⭐⭐ Use with a surfactant for best results.
*by P***A on October 16, 2025*

Works great as usual. I usually use 2 oz of roundup concentrate to 1 gallon of water along with 1 ounce of surfactant. The surfactant allows the roundup to penetrate the leaves better.

### ⭐⭐⭐⭐⭐ Good Value
*by D***T on November 3, 2025*

Good controlling cattails and water lilies in ponds as long as you add a surfactant.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-07*