GROCO Bronze Vented Loop - 2" Hose

The GROCO Bronze Vented Loop - 2" Hose is a crucial anti-siphon protection device designed for vessels with through-hull fittings. This product is essential for anyone who spends time on the water, as it helps prevent catastrophic flooding due to failed through-hull fittings. It is particularly beneficial for marine sanitation systems and raw water intakes.

Constructed from marine-grade bronze, this vented loop effectively breaks the siphon by allowing atmospheric air to enter the line, preventing water from flowing backward into the vessel. Its design is passive and reliable, with no moving parts that can fail, making it suitable for both saltwater and freshwater applications. The 2" hose connection accommodates standard marine plumbing diameters.

This vented loop is particularly critical for vessels that are anchored overnight or moored for extended periods, where the risk of siphoning is highest. Installation is straightforward, requiring the loop to be positioned at least 24 inches above the waterline and secured inline with the 2" hose runs. It is a recommended retrofit for cruising sailboats and powerboats running raw water cooling or marine heads.