---
product_id: 424999359
title: "Flushmatic In-Cistern Toilet Cleaner Blocks, Citrus - 100 g | Lasts Upto 240 Flushes"
brand: "harpic"
price: "$36"
currency: NZD
in_stock: true
reviews_count: 5
category: "Harpic"
url: https://www.desertcart.nz/products/424999359-flushmatic-in-cistern-toilet-cleaner-blocks-citrus-100-g-lasts
store_origin: NZ
region: New Zealand
---

# Refreshing citrus scent 240 flushes per block Continuous foaming & cleaning Flushmatic In-Cistern Toilet Cleaner Blocks, Citrus - 100 g | Lasts Upto 240 Flushes

**Brand:** harpic
**Price:** $36
**Availability:** ✅ In Stock

## Summary

> 🍋 Elevate your flush game — freshness that lasts, visible only in results!

## Quick Answers

- **What is this?** Flushmatic In-Cistern Toilet Cleaner Blocks, Citrus - 100 g | Lasts Upto 240 Flushes by harpic
- **How much does it cost?** $36 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/424999359-flushmatic-in-cistern-toilet-cleaner-blocks-citrus-100-g-lasts)

## 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

- • **Smart usage indicator:** Color fades as the block dissolves, signaling the perfect time for replacement.
- • **Long-lasting freshness:** Each 100g block powers up to 240 flushes, keeping your toilet hygienic for weeks.
- • **Invisible hygiene boost:** Sinks discreetly inside the cistern, delivering touch-free cleaning with every flush.
- • **Septic-safe & versatile:** Compatible with all toilet types and septic tanks, ensuring worry-free maintenance.
- • **Effortless stain prevention:** Strong foaming action prevents build-up and maintains a clear, fresh bowl.

## Overview

Harpic Flushmatic In-Cistern Toilet Cleaner Blocks (Citrus, 100g) deliver up to 240 flushes of continuous cleaning and foaming action. Designed to dissolve slowly inside the cistern, they release a powerful detergent dose with every flush, maintaining toilet hygiene and preventing stains. The citrus variant adds a refreshing scent while being safe for septic tanks and all toilet types. Its color-fade feature signals when to replace, ensuring uninterrupted freshness and cleanliness.

## 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: Seller: Cloudtail Price: 80/- (two piece pack) Delivery: 2 days, Prime, Bangalore (Super Value Sale) Package: desertcart carton box Recommended: NO, if you don't want strains on your toilet sheets Update after 5 months on regular usage: (LEAVES PERMANENT STRAINS !!!) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Guys, it makes a blue strain on the toilet bowl, esp on the water outlet from the tank (Which enters the bowl during flush. We tried acid wash and all possible stuffs, but no avail !!! --> I don't recommend this product at all esp if you are on rented houses. Your house owner may not like this !!! Update after 2 months: ~~~~~~~~~~~~~~~~ Everything is fine, but the foam is quite less as compared to this product. Plus not much of fragrence. I found this "Harpic Hygienic Citrus" slightly better in that aspects also because this product avoids you from buying air freshners like Odonil... You may check this product from Harpic as well before buying Product review ~~~~~~~~~~~~ 1. Keeps the toilet bowl odor free 2. Safer, unlike placing it on the seat this gets sunk into the flush tank keeping it invisible 3. Lasts upto 12-15 days for a family of three. A pack of two can be stretched till a month What's bad: ~~~~~~~~~ 1. Leaves a strain in the flush bowl, not sure if it can be cleaned but not many care about cleaning the tank 2. Deep blue/Violet color will always be left over which some might not like it How to use it? ~~~~~~~~~~~ 1. Drop the whole pack of one piece with plastic cover into your flush tank. Flush tank can be easily opened with hands. But make sure to drop on to the left/opposite side of the flush lever 2. Let it take some time (~4-5 mins) to dissolve into the water. Always keep this time as interval between every flush as the new water takes some time to get mixed 3. Over a week or so, the color continue to fade and until it fades to very pale color keep using it. 4. Replace the new one the same way. [Please hit helpful if it has helped you :-)...] [Tip: Buy this is desertcart Monthly Super sale 01 and 02 day]
Review: Excellent blocks. It continues to run even after 8 days of insertion. Recommended.

## Features

- In Cistern toilet cleaning block
- Clear green 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 | B00NWFWSPU |
| ASIN  | B00NWFWSPU |
| Additives | Sodium Dodecylbenzenesulfonate |
| Brand | Harpic |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,534) |
| Customer reviews | 4.2 4.2 out of 5 stars (1,534) |
| Date First Available | 1 January 2017 |
| Format | Tablet |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 8901396180005 - For Pantry |
| Manufacturer  | Reckitt Benckiser |
| Product Dimensions  | 11.4 x 2.5 x 14 cm; 100 g |
| Product Name | Toilet Cleaner Block |
| Units | 100 Grams |
| Weight | 100 Grams |

## Product Details

- **Brand:** Harpic
- **Item form:** Tablet
- **Material features:** Clean
- **Scent:** Citrus
- **Specific uses for product:** Toilet

## Images

![Flushmatic In-Cistern Toilet Cleaner Blocks, Citrus - 100 g | Lasts Upto 240 Flushes - Image 1](https://m.media-amazon.com/images/I/61KDQehlRDL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by B***J on 9 September 2016*

Seller: Cloudtail Price: 80/- (two piece pack) Delivery: 2 days, Prime, Bangalore (Super Value Sale) Package: Amazon carton box Recommended: NO, if you don't want strains on your toilet sheets Update after 5 months on regular usage: (LEAVES PERMANENT STRAINS !!!) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Guys, it makes a blue strain on the toilet bowl, esp on the water outlet from the tank (Which enters the bowl during flush. We tried acid wash and all possible stuffs, but no avail !!! --> I don't recommend this product at all esp if you are on rented houses. Your house owner may not like this !!! Update after 2 months: ~~~~~~~~~~~~~~~~ Everything is fine, but the foam is quite less as compared to this product. Plus not much of fragrence. I found this "Harpic Hygienic Citrus" slightly better in that aspects also because this product avoids you from buying air freshners like Odonil... You may check this product from Harpic as well before buying Product review ~~~~~~~~~~~~ 1. Keeps the toilet bowl odor free 2. Safer, unlike placing it on the seat this gets sunk into the flush tank keeping it invisible 3. Lasts upto 12-15 days for a family of three. A pack of two can be stretched till a month What's bad: ~~~~~~~~~ 1. Leaves a strain in the flush bowl, not sure if it can be cleaned but not many care about cleaning the tank 2. Deep blue/Violet color will always be left over which some might not like it How to use it? ~~~~~~~~~~~ 1. Drop the whole pack of one piece with plastic cover into your flush tank. Flush tank can be easily opened with hands. But make sure to drop on to the left/opposite side of the flush lever 2. Let it take some time (~4-5 mins) to dissolve into the water. Always keep this time as interval between every flush as the new water takes some time to get mixed 3. Over a week or so, the color continue to fade and until it fades to very pale color keep using it. 4. Replace the new one the same way. [Please hit helpful if it has helped you :-)...] [Tip: Buy this is Amazon Monthly Super sale 01 and 02 day]

### ⭐⭐⭐⭐⭐ Review
*by M***N on 11 January 2026*

Excellent blocks. It continues to run even after 8 days of insertion. Recommended.

### ⭐⭐⭐⭐⭐ Review
*by T***Y on 6 August 2025*

Nice product with good smell . Product reduced the chance of dirtyness in toilet

## Frequently Bought Together

- Harpic Flushmatic In-Cistern Toilet Cleaner Blocks, Citrus - 100 g | Lasts Upto 240 Flushes
- Harpic Disinfectant Toilet Cleaner Liquid, Original - 1 L | India's # 1 Toilet Cleaner
- Godrej aer Power Pocket Bathroom Freshener – Assorted Pack of 5 (50g)| Lasts up to 30 days | Germ Protection

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-22*