---
product_id: 445078760
title: "Descaler Solution, Multi-Purpose Descaling Solvent, Bio-Growth, Marine Boat Engine Flush and A/C Systems"
brand: "mainstream marine"
price: "₩91158"
currency: KRW
in_stock: true
reviews_count: 8
category: "Mainstream Marine"
url: https://www.desertcart.kr/products/445078760-descaler-solution-multi-purpose-descaling-solvent-bio-growth-marine-boat
store_origin: KR
region: South Korea
---

# Color-changing indicator for easy use Biodegradable multi-surface descaling Non-corrosive, metal-protectant formula Descaler Solution, Multi-Purpose Descaling Solvent, Bio-Growth, Marine Boat Engine Flush and A/C Systems

**Brand:** mainstream marine
**Price:** ₩91158
**Availability:** ✅ In Stock

## Summary

> 🛥️ Keep your boat’s heart beating strong — clean smarter, sail farther!

## Quick Answers

- **What is this?** Descaler Solution, Multi-Purpose Descaling Solvent, Bio-Growth, Marine Boat Engine Flush and A/C Systems by mainstream marine
- **How much does it cost?** ₩91158 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/445078760-descaler-solution-multi-purpose-descaling-solvent-bio-growth-marine-boat)

## Best For

- mainstream marine enthusiasts

## Why This Product

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

## Key Features

- • **Instant Visual Feedback:** Color-changing formula shifts from red to yellow, eliminating guesswork during maintenance.
- • **Advanced Metal Protection:** Includes a powerful protectant to prevent tarnishing and corrosion during and after cleaning.
- • **Versatile Marine Powerhouse:** Dissolves bio-growth, lime, rust & scale across engines & A/C systems effortlessly.
- • **Eco-Friendly & Equipment Safe:** Biodegradable, non-toxic, and gentle on seals, gaskets, and impellers—protect your investment and the environment.
- • **Boosts Performance & Longevity:** Flushes deposits to restore optimal flow and efficiency, extending your marine system’s lifespan.

## Overview

Mainstream Marine Descaler Solution is a biodegradable, multi-purpose descaling solvent designed for marine engines and A/C systems. Featuring a unique color-changing indicator, it simplifies maintenance by signaling when more solution is needed. This non-corrosive formula safely removes bio-growth, lime, rust, and mineral deposits without damaging critical components, while its metal protectant extends equipment life and performance.

## Description

Mainstream Marine Descaler Solution – 1 Gallon Refill Using a high-quality, safe descaling solution like this one is a great way to keep your boat’s water systems working efficiently. If they’re not regularly cleaned and flushed, they’ll start to develop buildups like mussels, barnacles, calcium, rust, and other water-formed mineral deposits. The result is that flow will be hindered and systems begin to malfunction. You’ll then be looking at much bigger issues that you have to deal with. It’s essential to flush marine engines and air conditioner systems. Color Changing Properties Eliminates The Guesswork How much is too much? How will I know if it's working? This descaler will let you know for sure! When flushing marine engines, if the solution comes out yellow add more. Once the solution cycles through, and remains red, then stop. Won’t Damage Your Equipment or the Environment The formula is biodegradable and non-toxic, so it’s safe to use around all marine environments. It will flush and improve efficiency without damaging seals, gaskets, impellers, or other components.

Review: Works Great - Used this to flush a clogged heater core. Can’t believe how much debris it cleaned out. My heater core was almost completely clogged but now flows like new.
Review: For a sealed system that uese a heat exchanger for cooling the motor. - Can’t really review because this is meant for a sealed system and not for outboards

## Features

- VERSATILE MULTI-PURPOSE MARINE SOLUTION: Biodegradable Mainstream Marine Descaler solution quickly dissolves bio-growth, water scale, lime, rust, and other water-formed deposits on marine engines and A/C systems. Regularly maintaining and flushing these systems with these boat cleaning supplies is a great way to improve overall performance and longevity.
- IT’S EASY TO TELL WHEN YOU NEED TO ADD MORE: There’s no guesswork with the Mainstream Marine Descaler Color-Indicating solution. If more marine cleaner descaling solution is needed, it will turn from red to yellow, so you’ll know when to add more.
- GET YOUR EQUIPMENT WORKING OPTIMALLY: Use this marine engine flush to rapidly improve efficiency and open flow passages by flushing bio-growth. It's an internal engine barnacle buster, lime-scale cleaner, rust remover, and water-formed deposit flusher all in one!
- SAFE FOR YOUR BOAT AND THE ENVIRONMENT: This marine descaling solution will NOT damage seals, gaskets, impellers, or other critical components. This boat engine flush is also biodegradable, non-toxic, and non-corrosive boat engine flush boat cleaner that contains zero V.O.C.
- PROTECTS AGAINST TARNISHING: Contains a powerful metal protectant designed to protect against damage, break down, and tarnishing during and after cleaning. The metal protectant and color change indicator provide improved protection compared to concentrated acid, helping to increase operation and lifetime.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09721SC52 |
| Best Sellers Rank | #73,249 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #121 in Boat Cleaners |
| Brand Name | Mainstream Marine |
| Customer Reviews | 4.3 4.3 out of 5 stars (59) |
| Date First Available | May 27, 2021 |
| Item Package Dimensions L x W x H | 9.5 x 3.4 x 3.2 inches |
| Manufacturer | Mainstream Marine |
| Package Weight | 1.04 Kilograms |
| Size | 1 Quart |
| Style | 1 Quart |

## Images

![Descaler Solution, Multi-Purpose Descaling Solvent, Bio-Growth, Marine Boat Engine Flush and A/C Systems - Image 1](https://m.media-amazon.com/images/I/71CNXCT-pML.jpg)
![Descaler Solution, Multi-Purpose Descaling Solvent, Bio-Growth, Marine Boat Engine Flush and A/C Systems - Image 2](https://m.media-amazon.com/images/I/91XqHjxVM9L.jpg)
![Descaler Solution, Multi-Purpose Descaling Solvent, Bio-Growth, Marine Boat Engine Flush and A/C Systems - Image 3](https://m.media-amazon.com/images/I/81krd2lXn9L.jpg)
![Descaler Solution, Multi-Purpose Descaling Solvent, Bio-Growth, Marine Boat Engine Flush and A/C Systems - Image 4](https://m.media-amazon.com/images/I/81C4B2uz4YL.jpg)
![Descaler Solution, Multi-Purpose Descaling Solvent, Bio-Growth, Marine Boat Engine Flush and A/C Systems - Image 5](https://m.media-amazon.com/images/I/91HO3TYe3HL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works Great
*by J***L on January 25, 2025*

Used this to flush a clogged heater core. Can’t believe how much debris it cleaned out. My heater core was almost completely clogged but now flows like new.

### ⭐⭐⭐⭐ For a sealed system that uese a heat exchanger for cooling the motor.
*by W***S on October 2, 2025*

Can’t really review because this is meant for a sealed system and not for outboards

### ⭐⭐⭐⭐⭐ cleaned out my boat air conditioning
*by D***S on October 10, 2022*

Circulated through my boat seawater loop with a rotary pump. Loosened up so much "stuff" that the loop plugged more than the pump could do. After connected a garden hose to the system and blew out tones of scale and shells. Never seen as much flow through the system afterward. Did exactly what I wanted.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.kr/products/445078760-descaler-solution-multi-purpose-descaling-solvent-bio-growth-marine-boat](https://www.desertcart.kr/products/445078760-descaler-solution-multi-purpose-descaling-solvent-bio-growth-marine-boat)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-09*