The Seaflo vented anti-siphon valve is a vented anti-siphon loop that breaks siphon action in hose systems and helps to protect the boat against unwanted water ingress.
It is mounted at the highest point of the system (typically 20–50 cm above the waterline), where the ventilation allows air to enter when flow stops. Suitable for installations such as marine toilets, septic systems, and bilge pumps.
Key features
Vented anti-siphon valve that reduces risk of backflow
Connection: 3/4" (19 mm)
Compact size: H 74 mm
Width: 97 mm
Typically used for toilet, septic, and bilge pump
Mounted at the highest point to break siphon action
