---
product_id: 411826262
title: "Flushmatic In-Cistern Toilet Cleaner Blocks, Marine - 50 g (Pack of 6) | Toilet Flush Cleaner Balls"
brand: "harpic"
price: "$54"
currency: NZD
in_stock: true
reviews_count: 5
category: "Harpic"
url: https://www.desertcart.nz/products/411826262-flushmatic-in-cistern-toilet-cleaner-blocks-marine-50-g-pack
store_origin: NZ
region: New Zealand
---

# Clear blue water on every flush Up to 240 flushes per block Continuous foaming & cleaning action Flushmatic In-Cistern Toilet Cleaner Blocks, Marine - 50 g (Pack of 6) | Toilet Flush Cleaner Balls

**Brand:** harpic
**Price:** $54
**Availability:** ✅ In Stock

## Summary

> 🚽 Elevate your flush game—clean, fresh, and fuss-free every time!

## Quick Answers

- **What is this?** Flushmatic In-Cistern Toilet Cleaner Blocks, Marine - 50 g (Pack of 6) | Toilet Flush Cleaner Balls by harpic
- **How much does it cost?** $54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/411826262-flushmatic-in-cistern-toilet-cleaner-blocks-marine-50-g-pack)

## Best For

- harpic enthusiasts

## Why This Product

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

## Key Features

- • **Vibrant Blue Flush:** Instantly transforms toilet water to a refreshing marine blue
- • **Septic-Safe Formula:** Gentle on septic tanks while tough on stains and odors
- • **Long-Lasting Freshness:** Each block powers up to 240 flushes, lasting about a month
- • **Touch-Free & Mess-Free:** Dissolvable wrapper means zero handling fuss or residue
- • **Effortless Hygiene Boost:** Drop-in block cleans every flush—no scrubbing needed

## Overview

Harpic Flushmatic In-Cistern Toilet Cleaner Blocks deliver continuous, powerful cleaning with every flush. Designed for easy drop-in use, each 50g block lasts up to 240 flushes, releasing a foaming detergent that keeps your toilet bowl hygienic and stain-free. The marine variant leaves water a crisp blue, signaling freshness while being safe for septic systems. Perfect for busy professionals seeking a low-maintenance, high-impact bathroom upgrade.

## Description

Harpic Flushmatic toilet cleaning cistern block is a drop-in tank tablet which can be used for any accessible cistern. It works by creating strong foam every time you flush the toilet, which helps to maintain cleanliness in the toilet bowl. Harpic Flushmatic toilet cleaner works from inside the cistern to release a dose of powerful detergent with every flush. Distributing the liquid across the bowl, it helps you maintain a hygienic and fresh toilet and prevents the build-up of stains giving you a continuous clean toilet. You need not remove the pleated cloth wrapper on the block as this will dissolve in the water till it finishes, just drop the block directly into the cistern. For best results drop it at the opposite end to the water inlet, by the float. Wait for 10 minutes to let the block mix, before the first flush. Harpic Flushmatic toilet cistern block is a toilet hygiene product for continuous cleaning without any mess. It is touch free and hygienic and dissolves completely when finished. A single block lasts up to a month depending upon individual usage. Also, it lets you know when it needs replacing as the colour of the flushed water starts to fade. To keep the freshness going replace it with a new Flushmatic block as soon as the colour starts to fade. Harpic Flushmatic toilet cleaner is safe to be used with septic tanks and all other toilet cleaners. For regular cleaning, use Harpic liquid. With the new improved formula, now each block lasts upto 240 flushes.

Review: Absolute works and very good
Review: Not bad just too dark in the beginning

## Features

- In Cistern toilet cleaning block
- Clear blue water on every flush
- Maintains hygiene of toilet on every flush
- Gives continuous cleaning and foaming
- Each block lasts upto 240 flushes
- Available in Marine Citrus and Lavender variant and in various sizes: 50g 100g 150g

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08VF93S9V |
| ASIN  | B08VF93S9V |
| Best Sellers Rank | #135,836 in Health ( See Top 100 in Health ) #802 in Household Toilet Cleaners |
| Brand | Harpic |
| Customer Reviews | 4.1 4.1 out of 5 stars (6,004) |
| Customer reviews | 4.1 4.1 out of 5 stars (6,004) |
| Date First Available | 29 January 2021 |
| Format | Liquid |
| Item model number  | 3163939 |
| Manufacturer  | Reckitt Benckiser India Pvt Ltd |
| Product Dimensions  | 16.1 x 2.1 x 4.1 cm; 6 g |
| Product Name | Toilet cleaner ball |

## Product Details

- **Brand:** Harpic
- **Item form:** Liquid
- **Material features:** easy to use and cleans with every flush
- **Scent:** Marine
- **Specific uses for product:** Toilet

## Images

![Flushmatic In-Cistern Toilet Cleaner Blocks, Marine - 50 g (Pack of 6) | Toilet Flush Cleaner Balls - Image 1](https://m.media-amazon.com/images/I/6138Kg0R24L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***R on 6 February 2026*

Absolute works and very good

### ⭐⭐⭐⭐ Review
*by U***R on 30 January 2026*

Not bad just too dark in the beginning

### ⭐⭐⭐⭐⭐ Review
*by N***P on 22 December 2025*

Nice product

## Frequently Bought Together

- Harpic Flushmatic In-Cistern Toilet Cleaner Blocks, Marine - 50 g (Pack of 6) | Toilet Flush Cleaner Balls
- Iron OUT Automatic Toilet Bowl Cleaner, Helps Remove and Prevent Rust Stains in Toilet Bowls and Tanks, 6 Tablets

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**Shop now:** [https://www.desertcart.nz/products/411826262-flushmatic-in-cistern-toilet-cleaner-blocks-marine-50-g-pack](https://www.desertcart.nz/products/411826262-flushmatic-in-cistern-toilet-cleaner-blocks-marine-50-g-pack)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-21*