Abey SP40AV 40mm Adjustable S&P Trap with Air Admittance Valve

Abey SP40AV 40mm Adjustable S&P Trap with Air Admittance Valve

The Abey SP40AV is a 40mm adjustable S&P trap with an integrated air admittance valve. It is designed for under-sink waste connections where the outlet may need to be configured to suit either an S-trap or P-trap style installation.

This product is commonly used for bathroom basins, vanity units and other smaller 40mm waste applications where an adjustable trap helps solve tight, awkward or offset plumbing connections.

Best suited for

• Bathroom vanity basins
• Bathroom sinks and hand basins
• Smaller under-sink waste connections
• Retrofit plumbing where the waste outlet is offset or difficult to align
• Installations where a trap with an air admittance valve is required

Key features

• 40mm adjustable S&P trap
• Integrated air admittance valve, also known as an AAV
• Can assist with S-trap or P-trap style waste configurations
• Adjustable design for tight or misaligned under-sink spaces
• Suitable for common vanity and basin waste applications
• Abey product code: SP40AV

What is an S&P trap?

An S&P trap is an adjustable plumbing trap that can help suit either S-trap or P-trap style waste pipe layouts, depending on how the outlet needs to connect. This makes it useful where the plumbing position does not line up neatly with a standard fixed trap.

What does the air admittance valve do?

The air admittance valve allows air into the waste system when needed, helping reduce siphoning of the water seal in the trap. The water seal is important because it helps prevent drain odours from coming back through the basin or sink waste.

40mm or 50mm — which size should I choose?

Choose the 40mm version when your basin, vanity or smaller sink waste connection requires a 40mm trap. For larger kitchen, laundry or 50mm waste applications, consider the Abey SP50AV 50mm adjustable S&P trap with air admittance valve.

Check before ordering

• Measure the existing waste pipe size.
• Confirm whether your installation requires a 40mm or 50mm trap.
• Check whether an air admittance valve is required for your installation.
• Confirm available space under the basin or vanity.
• Use a licensed plumber where required by local plumbing regulations.

Product details

Need the larger size? See the Abey SP50AV 50mm adjustable S&P trap with air admittance valve for larger sink, kitchen or laundry waste applications.

Installation note: Plumbing requirements vary by location and application. Confirm suitability before installation and use a licensed plumber where required.