Groco HVL-Series Vented Loop
- Allows air to enter to break siphon, but does not permit air and odors to escape
- Cap is threaded 1/2" NPT to accept a barb fitting if you wish to vent overboard
- Overboard venting is required if HVL series is used in an exhaust system
- HVL Series vented loops assure clog-free anti-siphon protection for sanitation or engine exhaust systems
- The oversized vent valve can easily be removed for inspection or cleaning without tools
- (3) Plastic Standoffs for mounting are included.