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About Hunter Rainwater Systems Plumbing Systems Underground Systems


Range of solutions for Soil and Waste systems
Prevents drainage system siphonage
Maintains essential water seals
BBA Approval for S450 and W150/W151
GurgleMaster II - Now almost any trap can be anti-vac

Hunter Air Admittance

The importance of allowing air to enter any soil or waste system should never be overlooked during design and/or installation. The result of poor ventilation is most commonly the siphonic removal of water seals from traps, causing the unpleasant gurgling noise and allowing foul odours to enter living space.

Hunter offer a full range of solutions to ensure adequate ventilation for the drainage system including the S450 Air Admittance Valve, for soil stack applications, the W150/151 Gurgle Master and innovative GurgleMaster II for domestic and commercial waste installations.

A range of products is also available in European sizes. For more information please contact our export department.

User Review

During a review of Hunter's Air Admittance range, the BBA sent a survey to 15 users and received 11 responses. Comments can be viewed by clicking here.
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All Hunter products are manufactured using a quality management system approved by BSI and conforming to BS EN ISO9001:2000. Where applicable product conforms to British and European standards.