---
product_id: 8926277
title: "Grohe 46138000 1/2 in. Quick Coupling, one-size"
brand: "grohe"
price: "A$85"
currency: AUD
in_stock: true
reviews_count: 13
category: "Grohe"
url: https://www.desertcart.com.au/products/8926277-grohe-46138000-1-2-in-quick-coupling-one-size
store_origin: AU
region: Australia
---

# 2.2 gallons per minute flow 1/2 inch precision fit 0.12 lbs lightweight metal Grohe 46138000 1/2 in. Quick Coupling, one-size

**Brand:** grohe
**Price:** A$85
**Availability:** ✅ In Stock

## Summary

> 💧 Upgrade your faucet flow game with Grohe’s quick coupling precision!

## Quick Answers

- **What is this?** Grohe 46138000 1/2 in. Quick Coupling, one-size by grohe
- **How much does it cost?** A$85 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/8926277-grohe-46138000-1-2-in-quick-coupling-one-size)

## Best For

- grohe enthusiasts

## Why This Product

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

## Key Features

- • **Durable Metal Build:** Engineered for longevity with premium metal construction
- • **OEM Trusted Quality:** Original Grohe part ensures perfect compatibility and reliability
- • **Optimized Flow Rate:** Boost your water flow to a smooth 2.2 GPM—no more waiting
- • **Compact & Lightweight:** Minimal 0.12 lbs weight keeps your setup sleek and efficient
- • **Seamless Quick Coupling:** Effortless installation for instant faucet upgrade

## Overview

The Grohe 46138000 Quick Coupling is a one-size, 1/2 inch metal fitting designed to enhance faucet water flow up to 2.2 gallons per minute. Lightweight at just 0.12 lbs, this OEM part offers easy installation and long-lasting durability, making it the go-to replacement for maintaining optimal faucet performance.

## Description

Product Description 1/2 inch and 0.12 pound. Weight. From the Manufacturer Grohe Quick Coupling (Yellow) # 46 138 000.

Review: Great Replacement to Increase Flow - This was a perfect replacement for the quick coupling that was in our Grohe Ashford faucet / flexible hose. The faucet is a 2016 faucet that never flowed that great. When the faucet put out a small stream, I finally pinned it down to as blockage in the restriction valve and backflow valve which was rated at 1.75 GPM. I cleared it out with compressed air so that it was back to the original flow which was still a slow rate of flow. After replacing it with this fitting which doesn't have the restriction, we're getting great flow; it doesn't take forever to fill up a coffee pot.
Review: Review - OEM part works great after the old one formed a crack and leaked after 25 years. I was afraid to get another brand, so i bought original. Easily installed and i expect another 25 years.

## Features

- 1/2 in. and 0.12 lbs. weight
- 2.2 gpm
- Faucet Spout Quick Coupling
- Model number: 46138000

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003FZAFOI |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #126,220 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,322 in Faucet Parts #1,610 in Pipe Fittings |
| Color | StarLight Chrome |
| Customer Reviews | 4.6 4.6 out of 5 stars (645) |
| Date First Available | January 12, 2006 |
| Finish | No Finish |
| Included Components | Coupling |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 0.811 ounces |
| Item model number | 46138000 |
| Manufacturer | Grohe |
| Material | Metal |
| Mounting Type | Face Mount |
| Number Of Pieces | 3 |
| Part Number | 46138000 |
| Product Dimensions | 5.12 x 3.74 x 1.57 inches |
| Size | one-size |
| Usage | Inside |
| Warranty Description | “*1 year Limited warranty from date of purchase” |

## Images

![Grohe 46138000 1/2 in. Quick Coupling, one-size - Image 1](https://m.media-amazon.com/images/I/512gHeHi8FL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Replacement to Increase Flow
*by R***C on December 23, 2025*

This was a perfect replacement for the quick coupling that was in our Grohe Ashford faucet / flexible hose. The faucet is a 2016 faucet that never flowed that great. When the faucet put out a small stream, I finally pinned it down to as blockage in the restriction valve and backflow valve which was rated at 1.75 GPM. I cleared it out with compressed air so that it was back to the original flow which was still a slow rate of flow. After replacing it with this fitting which doesn't have the restriction, we're getting great flow; it doesn't take forever to fill up a coffee pot.

### ⭐⭐⭐⭐⭐ Review
*by D***M on November 22, 2025*

OEM part works great after the old one formed a crack and leaked after 25 years. I was afraid to get another brand, so i bought original. Easily installed and i expect another 25 years.

### ⭐⭐⭐⭐⭐ If a 50 year old mom can install this, so can you.
*by J***J on December 1, 2013*

This was a perfect fit and easy (as DIY plumbing goes) to install. There are no instructions that come with the item, but I read the other reviews and googled it to figure out how to install it. Simply put, the black end is a screw in joint. The yellow (or whatever color) end is a pull-down release/lock. To remove the broken coupling, place a basin of some sort under the sink to catch water. TURN OFF YOUR WATER VALVES UNDER THE SINK. Reach up to the coupling with both hands, hold the coupling with one hand and pull down on the colored portion with the other. This will allow the coupling to be released from metal pipe. Carefully pull the coupling away from the pipe while staying away from natural flow of water. Allow the hose and pipe to drain out into the catch basin. Unscrew the black end from the hose and dry the hose threads. If the teflon tape is eroded, remove the old one and add a new one. Teflon tape is used on many screw in joints and is easily purchased at a hardware store. Screw on the coupling, but do not over-tighten. What does that mean? It needs to be secure enough to not leak, but not so tight that it's as far as you can get it. Hand-tightening is fine. There's no need for a wrench unless you have hand strength problems. Re-attach colored end to the pipe by holding the coupling with one hand, while pulling the colored portion down as you push it onto the metal pipe. Push all the way up and release the colored portion. You should hear/feel it snap in place. Tug down on it to make sure it's secure. Voila! You are done. Remember to turn you water back on. Keep the basin in place until you've tested the installation fully. Watch for leaks. Turn on and off several times, running the water for long and short periods. Any leaks are probably from the black end not being tight enough. If the colored end is not secure, it will pop off while you are running the water. Last bit of advice, it's worth paying extra for the overnight shipping, since you are saving a ton by not calling a plumber. I first checked to see if I could find the part at a local brick and mortar supplier, but had no luck. I doubt a plumber could get it for you faster unless the company carries it on their own.

## Frequently Bought Together

- Grohe 46138000 1/2 in. Quick Coupling, one-size
- Grohe 46092000 LadyLux Hose, 15mm x ½ x 1500 inches, Chrome
- Grohe 01224000 Spring O-Ring

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-11*