Product Overview
GRO-HVL-1000

Ensure smooth sailing and protect your engine with the Groco GRO-HVL-1000 Bronze Vented Loop. This essential component prevents siphoning in sanitation and engine exhaust systems, keeping your boat safe and odor-free. Its robust bronze construction resists corrosion, while the easy-to-inspect and clean design ensures long-lasting, reliable performance, giving you peace of mind on the water.
Key Features
- **Prevents Siphoning:** Eliminates the risk of unwanted water backflow, safeguarding your engine and sanitation systems.
- **Oversized Vent Valve:** Allows for easy inspection and cleaning without the need for tools, simplifying maintenance.
- **Durable Bronze Construction:** Resists corrosion in harsh marine environments for extended lifespan and reliability.
- **1" ID Hose Compatibility:** Designed for standard 1" ID hoses, making installation straightforward.
- **Versatile Venting Options:** The 1/2" NPT threaded cap accepts barb fittings for optional overboard venting, especially crucial for exhaust system applications.
- **Clog-Free Design:** Ensures consistent anti-siphon protection, keeping your systems running smoothly.
- Includes Mounting Hardware: Simplifies installation with all necessary hardware included.
Specifications
The Captain's Take
After years of battling clogged and malfunctioning vented loops, I switched to the Groco HVL-1000 and haven't looked back. Its robust construction and easy-to-service design are a game-changer. Knowing my engine and sanitation systems are protected from siphoning gives me the confidence to focus on what matters most – enjoying my time on the water. I highly recommend the GRO-HVL-1000 to any boater who values reliability and peace of mind.