Extension Pipe Honiton H6400 3/4" 400 mm

Honiton H6400 3/4" 400 mm is a straight extension pipe designed to add 400 mm of reach to existing plumbing connections. It provides a standardized 3/4" threaded connection compatible with common water system fittings, enabling straightforward extension of pipe runs, valves, taps or fixtures in residential and light commercial installations.

Advantages

The extension pipe offers a simple, space-saving solution for increasing connection length without altering the original plumbing layout. Its standardized 3/4" thread ensures compatibility with many fittings, and the 400 mm length gives sufficient reach for most adjustment needs. The product is suitable for both new assemblies and retrofit work, allowing installers to make precise alignment corrections and improve accessibility to valves or fixtures.

Suitable for

• Extending cold and hot water pipe connections in homes
• Adjusting the position of valves, taps and fixtures
• Light commercial plumbing where moderate reach is required
• Retrofitting or repairing existing plumbing systems

When it may not be suitable

This extension pipe is intended for standard 3/4" threaded water fittings; it is not suitable for systems requiring different thread types or sizes. It may not be appropriate for high-pressure industrial applications or for use with non-water media unless confirmed compatible by the installer or manufacturer.

Key specifications

• Connection size: 3/4" threaded
• Length: 400 mm
• Function: straight extension for plumbing connections
• Typical use: cold and hot water systems in residential and light commercial settings

How to use

Shut off the water supply and relieve pressure before installation. Thread the extension pipe into the existing 3/4" fitting, using appropriate sealing material such as PTFE tape or thread sealant on the male threads to ensure a watertight joint. Tighten to a secure fit without over-torquing; use suitable wrenches and hold the mating component steady to avoid strain on upstream connections. After installation, restore water supply and check for leaks at the joints, retightening if necessary.

What to consider before purchase

• Confirm that existing fittings use a 3/4" threaded connection
• Verify that a 400 mm extension length meets the required reach and clearance
• Check material compatibility with your system and local plumbing codes

Usage recommendations

For reliable performance, use appropriate thread sealing and avoid excessive torque when tightening. If unsure about compatibility or pressure ratings, consult a qualified plumber or refer to local regulations before installation.