Rubber Flexible Reducing Coupling 50mm to 40mm – Stainless Clamps (1433689)

Rubber Flexible Reducing Coupling – 50mm to 40mm

This rubber flexible reducing coupling connects a 50mm pipe to a 40mm pipe, creating a watertight seal without the need for glue or special tools. Ideal for pool plumbing, drain, waste, and vent (DWV) applications where pipes of different sizes need to be joined quickly and securely.

Made from natural rubber with 316 stainless steel clamps, it meets Australian standards and is designed for long-term durability above and below ground.

Key Features

• Reduces 50mm pipe to 40mm — watertight seal between plain-ended pipes
• Natural rubber body — flexible and accommodates normal ground movement
• 316 stainless steel clamps — corrosion resistant
• No glue required — tighten with a nut driver or screwdriver
• Removable and re-fittable as required
• Suitable for above and below ground installation
• Meets Australian standards

Specifications

Frequently Asked Questions

What is a flexible rubber coupling used for in pool plumbing?

A flexible rubber coupling is used to join two pipes of the same or different sizes without glue. In pool plumbing, they are commonly used to connect pump, filter, or drain pipework where a rigid glued joint would be difficult to access or where future serviceability is needed.

Does this coupling require glue or primer?

No — the coupling uses stainless steel clamps to create a watertight seal. Simply slide it over both pipe ends and tighten the clamps with a nut driver or screwdriver.

Is this suitable for pressure applications?

This coupling is designed for low-pressure applications including drain, waste, vent (DWV), and grey water systems. It is not rated for high-pressure pool pump discharge lines. If you need a pressure-rated fitting, contact us for advice.

Can I reuse this coupling?

Yes — the coupling can be removed and re-fitted as required, making it ideal for applications where future access or pipe modification may be needed.