Outdoor garden tap hose union modern 1/2 inch BSP compression wallplate elbow 15MM copper tube single bib tap washing machine

Published: October 2025 | Garden & Outdoor

A reliable outdoor water source is one of those small additions that transforms how you use your garden. Whether you're filling watering cans, connecting a hose, or setting up an outdoor washing station, having a dedicated garden tap saves time and effort. This complete kit combines a 1/2″ BSP compression wallplate elbow, 15mm copper tube, and a single brass bib tap—everything needed for a neat, professional installation through your exterior wall.

What’s Included in This Outdoor Garden Tap Kit

This kit is designed as a complete solution for installing an outdoor tap with minimal fuss. The package includes a brass wallplate elbow with 15mm compression inlet and 1/2″ BSP female outlet, a through-the-wall copper tube (typically 35cm), and a single brass bib tap with 1/2″ BSP male inlet and 3/4″ hose union outlet .

The wallplate elbow is the heart of the system. Constructed from solid brass, it provides a durable, corrosion-resistant anchor point for the copper pipe while creating a secure 90-degree connection point for the tap . The 15mm compression fitting uses a standard olive-based joint, creating a watertight seal without soldering . The wallplate includes fixing holes, allowing you to secure it firmly to brick or timber for a stable installation .

Key Features That Matter for Outdoor Use

Brass Construction Throughout. Both the wallplate elbow and the bib tap are made from solid brass, offering excellent resistance to rust and corrosion in outdoor conditions . Unlike zinc alloy alternatives that degrade over time, brass is built to last.

Heat-Free Compression Installation. The 15mm compression connection means you can install this system without a blowtorch or soldering skills. A pair of spanners is all that's required to tighten the olive onto the copper pipe . This makes it ideal for DIY installation, even in damp or confined spaces where open flames would be impractical.

Standard 1/2″ BSP Connections. The BSP threaded connections are the UK standard for garden taps and hose fittings. The wallplate's 1/2″ female thread accepts the bib tap's 1/2″ male inlet, while the tap's 3/4″ hose union outlet connects directly to standard garden hose fittings .

Installation Overview

Installing this outdoor garden tap kit is straightforward for anyone with basic DIY skills. The process typically involves drilling a hole through the exterior wall, feeding the 15mm copper tube through, and connecting it to the wallplate elbow on the outside and your existing cold water supply on the inside .

The wallplate elbow is then secured to the wall using the provided screws and wall plugs. After wrapping PTFE tape around the bib tap's threaded inlet, it screws directly into the wallplate elbow . Once tightened, the tap is ready to use. Most users report completing the installation in under 30 minutes .

Important Considerations Before You Buy
Backflow Protection. UK water regulations require outdoor taps to have backflow prevention to protect your household water supply from contamination . This kit does not include a double check valve, so you'll need to ensure one is fitted elsewhere in the supply line, or choose a tap model with an integrated check valve.

Winter Care. While brass is frost-resistant, water remaining in the tap or exposed pipe can freeze and cause damage. For winter protection, isolate the supply indoors and drain the outdoor section before freezing temperatures arrive .

PTFE Tape Not Included. You'll need PTFE thread seal tape for the threaded connections. This is inexpensive and widely available, but worth noting so you're not caught short mid-installation .

Why Choose a Through-the-Wall Tap Kit
This kit style offers a cleaner finish than surface-mounted alternatives. By running the copper pipe through the wall, you eliminate exposed pipework on the exterior and create a flush, professional appearance . The wallplate elbow also provides a much more secure mounting point than screwing a tap directly to timber, which can rot over time .

For anyone planning a new outdoor water point or replacing a leaking old tap, this all-in-one solution combines the right components in one purchase—saving the hassle of sourcing individual fittings.