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• Suitable for engine exhaust system installations or sanitation system installation
• PVL series full-flow vented loops are for pipe connections
• HVL series vented loops are for hose connections
• All bronze construction
• The over-sized vent valve is virtually clog-free, and can easily be removed without tools for inspection or cleaning by unscrewing the threaded cap
• Mounting hardware is included.- 3/4" Id hose