---
product_id: 3586322
title: "Whink 20223 RUSTGuard Time Released Bowl Cleaner, 4 oz"
brand: "rustguard"
price: "£17.86"
currency: GBP
in_stock: true
reviews_count: 8
category: "Rust Guard"
url: https://www.desertcart.co.uk/products/3586322-whink-20223-rustguard-time-released-bowl-cleaner-4-oz
store_origin: GB
region: United Kingdom
---

# Up to 1 month continuous action Septic-safe, eco-friendly formula 2-in-1 rust & hard water stain prevention Whink 20223 RUSTGuard Time Released Bowl Cleaner, 4 oz

**Brand:** rustguard
**Price:** £17.86
**Availability:** ✅ In Stock

## Summary

> 🚽 Keep your throne spotless and stain-free—because your bathroom deserves the best!

## Quick Answers

- **What is this?** Whink 20223 RUSTGuard Time Released Bowl Cleaner, 4 oz by rustguard
- **How much does it cost?** £17.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/3586322-whink-20223-rustguard-time-released-bowl-cleaner-4-oz)

## Best For

- rustguard enthusiasts

## Why This Product

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

## Key Features

- • **Safe for All Systems:** Compatible with septic tanks, plumbing, and colored toilet bowls—no damage, only protection.
- • **Invisible Yet Effective:** Tablet dissolves into a thick gel that works quietly behind the scenes, keeping your toilet pristine.
- • **Powerful 2-in-1 Formula:** Prevents rust and hard water buildup without harsh chemicals like bleach or acids.
- • **Trusted by Well Water Users:** Neutralizes iron and minerals, making it a must-have for homes with high iron content water.
- • **Effortless Monthly Maintenance:** Just drop one tablet in the tank and forget rust stains for up to 30 days.

## Overview

Whink 20223 RUSTGuard Time Released Bowl Cleaner is a 4 oz tablet designed to prevent rust and hard water stains in toilet bowls and tanks. Its unique 2-in-1 formula contains no chlorine bleach, phosphates, dyes, caustics, or acids, making it safe for all plumbing and septic systems. The tablet dissolves into a thick gel that continuously works for up to a month, ensuring long-lasting protection and a cleaner toilet with minimal effort.

## Description

Whink RUSTGuard 2-in-1 Toilet Bowl Cleaner makes cleaning and preventing rust and hard water stains as simple as quickly placing a tablet in the toilet tank once a month. 2-in-1 formula contains no chlorine bleach, phosphates, dyes, caustics or acids, making it safer for use in all plumbing and septic systems. For best results, remove existing rust stains with Whink Rust Stain Remover prior to use.

Review: Works for me, after some manual cleaning - I tried one and it cleaned the bottom of my tank but not the top. So I cleaned the top manually with some acid based manual cleaner and brush. After a month rust started coming back in the entire tank. So I did the acid and brush wash again and then put another of these tablets in. A month later and this tablet has dissolved and there is no rust in the entire tank. So I will keep using these to see if I no longer have to buy rust spray and washing manually ever again. These tablets turn into a semi gel in the tank and slowly dissolves.
Review: These pellets keep your ceramic toilet bowls like new - A one of a kind product which does what it says. You won't need a sandstone. Have used these for a decade because they neutralize the iron and minerals in the water in the tank before the water is delivered into the toilet bowl. Be aware each 'pellet' is solid and apx. 2" x 1.5"; a few orders have arrived with cracked pellets, from various dealers, because they were not in sufficient protective delivery packaging. The manufacturer seals them tight but the issue is the light wt. bubble shipping bag. If you have well water you need these.

## Features

- Use to prevent the buildup of rust and hard water stains in toilet bowls and reservoirs
- 2-in-1 formula contains no chlorine bleach, phosphates, dyes, caustics or acids
- Simply place one tablet inside of the toilet tank to prevent rust stains
- Safe for use in all septic systems, plumbing and colored toilet bowls
- Tablet dissolves into thick gel in tank and continues working for up to a month

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002EIRX9M |
| Best Sellers Rank | #81,735 in Health & Household ( See Top 100 in Health & Household ) #262 in Household Toilet Cleaners #3,600 in Sales & Deals |
| Brand | RUSTGuard |
| Brand Name | RUSTGuard |
| Contains Liquid Contents? | Yes |
| Customer Reviews | 4.2 out of 5 stars 2,198 Reviews |
| Global Trade Identification Number | 00070275201235 |
| Included Components | WHINK - 20223 |
| Item Form | Tablet |
| Item Type Name | Toilet Bowl Cleaner |
| Item Volume | 3.5 Fluid Ounces |
| Item Weight | 3.5 Ounces |
| Manufacturer | RUSTGuard |
| Material Feature | Clean |
| Material Features | Clean |
| Material Type Free | No_Material_Type_Free |
| Model Number | 20223 |
| Number of Items | 1 |
| Part Number | 20223 |
| Scent | Unscented |
| Size | 2 Count (Pack of 1) |
| Special Features | Concentrated |
| Specific Uses For Product | Toilet |
| Surface Recommendation | Toilet |
| UPC | 070275201235 |
| Unit Count | 2.0 Count |
| Warranty Description | Warranty |

## Product Details

- **Brand:** RUSTGuard
- **Item Form:** Tablet
- **Material Feature:** Clean
- **Scent:** Unscented
- **Specific Uses For Product:** Toilet

## Images

![Whink 20223 RUSTGuard Time Released Bowl Cleaner, 4 oz - Image 1](https://m.media-amazon.com/images/I/91QVND-EHFL.jpg)
![Whink 20223 RUSTGuard Time Released Bowl Cleaner, 4 oz - Image 2](https://m.media-amazon.com/images/I/71IpmilS0NL.jpg)
![Whink 20223 RUSTGuard Time Released Bowl Cleaner, 4 oz - Image 3](https://m.media-amazon.com/images/I/71yM1CMkyYL.jpg)
![Whink 20223 RUSTGuard Time Released Bowl Cleaner, 4 oz - Image 4](https://m.media-amazon.com/images/I/71hJl4xLfPL.jpg)
![Whink 20223 RUSTGuard Time Released Bowl Cleaner, 4 oz - Image 5](https://m.media-amazon.com/images/I/51DKnCN+QCL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works for me, after some manual cleaning
*by C***S on June 6, 2024*

I tried one and it cleaned the bottom of my tank but not the top. So I cleaned the top manually with some acid based manual cleaner and brush. After a month rust started coming back in the entire tank. So I did the acid and brush wash again and then put another of these tablets in. A month later and this tablet has dissolved and there is no rust in the entire tank. So I will keep using these to see if I no longer have to buy rust spray and washing manually ever again. These tablets turn into a semi gel in the tank and slowly dissolves.

### ⭐⭐⭐⭐⭐ These pellets keep your ceramic toilet bowls like new
*by A***Y on August 18, 2025*

A one of a kind product which does what it says. You won't need a sandstone. Have used these for a decade because they neutralize the iron and minerals in the water in the tank before the water is delivered into the toilet bowl. Be aware each 'pellet' is solid and apx. 2" x 1.5"; a few orders have arrived with cracked pellets, from various dealers, because they were not in sufficient protective delivery packaging. The manufacturer seals them tight but the issue is the light wt. bubble shipping bag. If you have well water you need these.

### ⭐⭐⭐⭐ Not a miracle worker, but good for maintenance
*by A***R on July 24, 2020*

Pros: - maintained my tank after it was cleaned - helped flush out rust & build-up I couldn't reach - washed away the toilet bowl stain I couldn't get rid of - good price - no smell Cons: - doesn't work on a super dirty tank (thick black slime appears) - visible in the water as it comes apart (not a big deal, but guests might wonder) - lasts a couple days, maybe a week

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-09*