Vented Loops with Integral Hose Barbs

Vented Loops with Integral Hose Barbs

For 1/2", 5/8", 1" and 1-1/4" Hose • Prevents Siphoned Water From Entering Your Boat • Black or White

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These vented loops have hose barbs threaded onto them, sealed with Teflon® tape..

Vented Loops are commonly used in the marine toilet system and engine cooling system. The simple inverted duckbill valve system incorporated in the top of the loop allows air to enter the line when not in use, yet effectively seals the vent as water or other fluid passes through.

Molded in glass-reinforced Marelon, neither vent nor loop will corrode. The duckbill one-way valve is designed to seal properly, even if particulate matter is present in fluids.

The available MF-846 vent barb assembly option can be used in lieu of the standard MF-841 cap and duckbill. This option allows valveless venting - without the liabilities of a duckbill possibly fouling. Venting can be to the outside of the hull via a 1/4"(6.35mm) hose, or simply running the hose vertically toward the overhead, above any possible water level.

Forespar has produced a 3-1/2 minute video covering the safety advantages of vented loops, as well as several tips about mounting and maintenance.
Click on See detailed table of all productsto see specifications of product options.
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Sku#Item IDForespar#AvailabilityDescriptionUOMYour PriceQTY
161597FOR 903008 903008Loading...MF 845 Vented Loop, 1/2" (Black)Loading...
432940FOR 903008W 903008WLoading...MF 845 Vented Loop, 1/2" (White)Loading...
139579FOR 903003 903003Loading...MF 843 Vented Loop, 5/8" (Black)Loading...
432938FOR 903003W 903003WLoading...MF 843 Vented Loop, 5/8" (White)Loading...
70840FOR 903007 903007Loading...MF-844 Vented Loop, 1" (Black)Loading...
432939FOR 903007W 903007WLoading...MF 844 Vented Loop, 1" (White)Loading...
385934FOR 903011 903011Loading...MF 839 Vented Loop, 1-1/4" (Black)Loading...
432942FOR 903011W 903011WLoading...MF 839 Vented Loop, 1-1/4" (White)Loading...
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