1/2 Air Vent W/ Hygroscopic Safety Air Vent Cap (1/2" NPT)

Price: $23.00 per pcs

Availability: Available to order

Description

1/2" NPT automatic air vent with a hygroscopic safety cap. Bleeds trapped air out of a hydronic system automatically; the hygroscopic cap swells shut if water reaches it, so a failed vent does not spill onto the floor.