Pneumatic on/off air button from Hydrospares - 47mmØ Squared edge. Ideal for use on whirlpool baths, air spas and hot tubs.
Unique waterproof membrame, stops water penatrating into the buttons internals, this stops the bellows perashing and water from passing through the button to the underside of the bath. Perfect for installations that are wet. e.g Shower area.
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