Are the water saving kits easy to use?

Yes, thanks to the existing connection adapters and a mousse insert, you can simply screw the water-saving sets into the spout of the tap. The connection dimension is G 3/8 inch.

Which GROHE range are the water-saving sets not compatible with?

The water-saving kits are not compatible with the following series: Allure, Allure Brilliant, Atrio, Essence

What does M22 / M24 mean?

M22/M24 represents the outer diameter of the thread, i.e. the mixing nozzle has a dimension of 22 mm or corresponding to 24 mm. You can easily measure the diameter and choose the appropriate mousseur based on it.

How to mount a mousseur to the tap?

Installing a mousseur is very simple. The mousseur is a coin-shaped aerator that you screw into the spout of the tap. Please note the connection dimension of G 3/8 inch.

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GROHE Flow Straightener – Bathroom or Kitchen Tap Aerator 24mm Male Thread (Water Saving Technology Limits Water Flow to 5.7 litres per Minute, Replacement Insert Tap Spout), 2 Pack, Chrome, 40451000

GROHE Flow Straightener – Bathroom or Kitchen Tap Aerator 24mm Male Thread (Water Saving Technology Limits Water Flow to 5.7 litres per Minute, Replacement Insert Tap Spout), 2 Pack, Chrome, 40451000

Product ID: 56478975

Details

Brand
GROHE
Finish type
Chrome
Material
Stainless
Specification met
WaterSense
Thread size
24mm

💧5.7 L/min flow limit

🔩Easy screw-on install

🛡️Durable stainless steel

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VT7725

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Description

💧 Turn your tap into a water-saving powerhouse—effortless efficiency meets sleek design!

BUILT TO LAST - Crafted from sturdy stainless steel for long-term durability and reliability.
INSTALL IN SECONDS - Screw on effortlessly—no tools, no hassle, start saving immediately.
SMOOTH FULL FLOW - Enjoy a consistent, splash-free water stream that feels premium and controlled.
ECO FRIENDLY UPGRADE - Certified WaterSense technology helps reduce your environmental footprint with style.
SAVE WATER SAVE MONEY - Limits water flow to an efficient 5.7 litres per minute without sacrificing performance.

The GROHE Flow Straightener is a chrome-finished, stainless steel tap aerator designed to limit water flow to 5.7 litres per minute, helping you save water without compromising on a smooth, full water stream. Easy to install with a simple screw-on mechanism, this durable 2-pack replacement insert fits 24mm male thread taps, making it an eco-friendly upgrade for both bathroom and kitchen faucets.

Specifications

ASIN	B0085676US
Best Sellers Rank	139,560 in DIY & Tools ( See Top 100 in DIY & Tools ) 381 in Aerators
Brand	GROHE
Country of Origin	Switzerland
Customer Reviews	4.6 out of 5 stars 1,235 Reviews
Finish	Chrome
Finish type	Chrome
Flow Rate	5.7 Litres Per Minute
Global Trade Identification Number	04005176889691
Included Components	GROHE 40451000 - M24x1 Recambio Mousseur (2 unidades)
Item Type Name	GROHE 40451000 - M24x1 Recambio Mousseur (2 unidades)
Item Weight	0.04 Kilograms
Manufacturer	Grohe
Material	Stainless Steel
Maximum flow rate	5.7 Litres Per Minute
Model Number	40451000
Part Number	40451000
Specification Met	WaterSense
Specification met	WaterSense
Thread Size	24mm
Thread size	24mm
Unit Count	2.0 count

Reviews

M**U

Great product

Really easy to fit only time will tell if they save me water

17.01.2026

N**Y

Recommend this product

This great! I recommend this product. I’m happy for this, make such a difference on my tap.

1.12.2025

A**R

Fits well but make sure to use plumbing tape too

Fits my tap perfectly but even tightening the thread as much as possible didn't stop a small squirt of water with a mind of its own. I fitted the aerator and in my excitement turned it on full blast and a wayward stream soaked my girlfriend who was stood next to me. I found it hilarious but she was not impressed, so had to get the plumbing tape out. It works as it should now

5.03.2024

P**T

Excellent.

New bathroom fitted. Tap had a strange helical flow which seemed to prevent pressure. Popped this on, hey presto ! a straight flow.

1.06.2025

A**R

It fitted

Yes thank

12.12.2024

G**N

water leaking from side

- packaging is different than shown - water leaking from sides despite trying to tighten several times

16.02.2026

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VT7725

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In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

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