Marine Vented Loops & Parts

Marine Anti-Siphon Valves at Fisheries Supply

Marine plumbing systems require specialized components to function efficiently. One of those crucial elements is the marine anti-siphon valve, also known as a vented loop. By allowing air into the system, the vented loop valve maintains proper flow direction and prevents unwanted water ingress, thus ensuring the integrity of the boat's water and waste systems. The design effectively breaks any potential siphon effect. We carry marine vented loop anti-siphon valves from top brands, such as Forespar, Vetus, or Groco as well as outboard anti siphon valves.

What is a Marine Anti-Siphon Valve?

A marine anti-siphon valve is a safety device designed to:

• Prevent unwanted water backflow in boat plumbing systems.
• Protect against contamination and system failures.

These valves are particularly important for plumbing systems located below the waterline, where they help prevent the back-siphoning of seawater.

Applications in Marine Environments

Marine vented loops are essential for various boat systems, including:

• Marine toilets.
• Engine cooling systems.
• Bilge pumps.
• Freshwater tanks.

Our representatives can help you select the right anti-siphon valve for your boat, ensuring optimal performance and safety.

Shop now and save or browse our extensive selection of marine plumbing fittings to complete your installation.