VIVA 40mm Anti-Vac Waste Trap Adapter

VIVA 40mm Anti-Vac Waste Trap Adapter

The VIVA 1½″ Anti Vac Adapter (40mm) is a compact anti-vac solution designed to prevent negative pressure in waste systems and protect the water seal in your trap. When negative pressure occurs in pipework, it can siphon water from the trap, leading to foul odours, gurgling noises, and inconsistent drainage. This anti-vac adapter helps balance air pressure within the waste system, improving flow and reducing noise without the need for additional venting.

This website listing is for one single unit. Choose the basket quantity you need for the job.

Key Features

• Prevents Negative Pressure in Waste Systems – Compact anti-vac adapter helps stop siphoning, maintains the trap water seal and reduces foul odours caused by negative pressure in waste pipework.
• Reduces Gurgling & Improves Drainage Flow – Helps balance air pressure to reduce gurgling noise and support smoother drainage performance without adding extra venting.
• Fits Standard 1½″ (40mm) Pipe – Designed for 1½″ / 40mm waste systems and fits neatly behind the trap, ideal for tight spaces, upgrades, replacements and retrofit installations.
• Universal Outlet for Common Pipe Types – Universal outlet suitable for plastic, copper and lead pipe, giving flexibility across a wide range of domestic plumbing setups.
• High Quality Polypropylene Construction – Manufactured from durable polypropylene for long service life and resistance to everyday household waste and cleaning chemicals.

Typical Uses

• Hot and cold water pipework
• Central heating installations
• Repairs and alterations to compatible pipe systems

Before ordering, check the stated size, connection type and available fitting space to make sure this product is suitable for your installation.