Groco Bronze Vented Loop for Hose

The Groco bronze vented loop (also called an anti-siphon loop or siphon break) is made for hose connections in marine sanitation and engine exhaust systems. It lets air in to break a siphon. It does not let air or odors out, so seawater can't siphon back into the boat or engine.

Key Features:

• Bronze construction for marine use
• Anti-siphon protection for sanitation and engine exhaust systems
• Oversized vent valve that resists clogging. Unscrew the threaded cap to remove the valve for inspection or cleaning without tools.
• 1/2" NPT threaded cap that accepts a barb fitting if you want to vent overboard
• Mounting hardware included

Important: Overboard venting is required when an HVL series vented loop is used in an exhaust system. Not for use in potable water systems.