Great for fitting horizontally or vertically. Perfect to stop smells and backflow. With no water seal, it can never dry out through evaporation or lack of use, as the membrane remains sealed.

Available in 1¼ and 1 sizes

BSP female inlet nut x universal compression outlet

Membrane opens under water pressure to allow discharge to flow freely and then closes to form a seal to prevent foul odour or sewer gas entering the building

Can be fitted in horizontal or vertical position

Can be fitted in installation where a non-return valve can be of benefit to the plumbing installation

No water seal so it can never dry out through evaporation or lack of use of an appliance as the membrane remains sealed

Not recommended for use with shower trays unless there is access for maintenance

Patent Pending

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