Vented Loops

Made in the USA Allows air to enter to break siphon, but does not permit air and odors to escape! Cap is threaded 1/2" NPT to accept a barb fitting if you wish to vent overboard. Overboard venting is required if PVL or HVL series is used in an exhaust system. HVL and PVL series vented loops assure clog-free anti-siphon protection for sanitation or engine exhaust systems. The oversized vent valve …
$118.71
Made in the USA Allows air to enter to break siphon, but does not permit air and odors to escape! Cap is threaded 1/2" NPT to accept a barb fitting if you wish to vent overboard. Overboard venting is required if PVL or HVL series is used in an exhaust system. HVL and PVL series vented loops assure clog-free anti-siphon protection for sanitation or engine exhaust systems. The oversized vent valve …
$132.41
Made in the USA Allows air to enter to break siphon, but does not permit air and odors to escape! Cap is threaded 1/2" NPT to accept a barb fitting if you wish to vent overboard. Overboard venting is required if PVL or HVL series is used in an exhaust system. HVL and PVL series vented loops assure clog-free anti-siphon protection for sanitation or engine exhaust systems. The oversized vent valve …
$127.08
Made in the USA Allows air to enter to break siphon, but does not permit air and odors to escape! Cap is threaded 1/2" NPT to accept a barb fitting if you wish to vent overboard. Overboard venting is required if PVL or HVL series is used in an exhaust system. HVL and PVL series vented loops assure clog-free anti-siphon protection for sanitation or engine exhaust systems. The oversized vent valve …
$117.95
Anti syphon device. Complete with skin fitting, hose clamps and 4 m of hose. Can be connected to hoses with internal diameters of 13, 19, 25 and 32 mm or 1/2, 3/4, 1, 1 1/4 inches.
$74.23
Anti syphon device with reliable pressure valve. Self contained. Can be connected to hoses with internal diameters of 13, 19, 25 and 32 mm.
$74.23
This airvent is suitable for 38 mm hose. Also ideal for toilets or holding tanks which are installed below the waterline. Air bleed connection rotates through 360°.
$74.23
Comes complete with skin fitting, hose clamps and 2 metres of hose. Can be connected to hoses with internal diameters of 13, 19, 25 and 32 mm.
$74.23
Air vent suitable for hoses with internal diameters of 13, 19, 25 and 32 mm. Air bleed connection rotates through 360°.
$74.23
This airvent is suitable for 38 mm hose. Also ideal for toilets or holding tanks which are installed below the waterline. Air bleed connection rotates through 360°.
$74.23