Vented Loops-38mm 38 mm Anti‑Siphon Vented Loop | 4Boats

38 mm anti-siphon vented loop for marine freshwater systems. Passive device that prevents backflow and protects freshwater tanks and electric toilet systems. Port connection: 38 mm (1-1/2 in) hose.

• Compatible with freshwater circuits and electric toilet systems
• Passive anti-siphon action; no power required
• Port connection: 38 mm (1-1/2 in) hose
• Material: marine-grade UV-stable ABS / glass-filled nylon
• Max working pressure: 2.5 bar (36 psi)
• Recommended installation: highest practical point, minimum 150 mm (6 in) above the waterline
• Service cap: threaded removable vent cap for inspection and maintenance
• Typical dimensions: approx. 170 mm height x 80 mm width
• Weight: approx. 180 g
• Maintenance: periodic inspection; clear debris from the vent and drain before winter storage
• Use case: prevents siphoning from toilets, sinks and tanks when vessel heels or during pump failures
• Mounting: vertical orientation recommended; secure with stainless fasteners and hose clamps

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Note: Ensure hose ID is 38 mm (1-1/2 in) for a proper seal; use suitable barbed fittings or adapters and quality hose clamps.