Description
MF 841 Vent Cap Assembly
Installing one of our vented loops will ensure that fluids will not siphon from tank to tank. Vented loops are commonly used in the marine toilet system and engine cooling system. The simple valve system incorporated in the top of the loop allows air to enter the line when not in use, yet effectively seals as water or other fluid passes through. Molded in Marelon, neither vent nor loop will corrode. The duckbill one way valve is designed to seal properly if particulate matter is present in fluids.
Specifications:
- Type: Vented Loops
- Box Dimensions: 1″H x 1″W x 2″L WT: 0.1 lbs
- UPC: 028026148735


![Furuno Bracket f /TZTL15F [001-337-420-00]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/furuno-bracket-f-tztl15f-001-337-420-00.webp)
![Ronstan RF4056 Clear Start Analogue Watch - 43mm [RF4056]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/ronstan-rf4056-clear-start-analogue-watch-43mm-rf4056.webp)
![Raritan Heavy-Duty Push Button Switch - Brass [164000BR]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/raritan-heavy-duty-push-button-switch-brass-164000br.webp)
![Raymarine Handset Extension Cable f /Ray60 /70 - 10M [A80292]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/raymarine-handset-extension-cable-f-ray60-70-10m-a80292.webp)
![Kittrich Textilen Campmat Home Is Where Park [STRB-15821-10]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/kittrich-textilen-campmat-home-is-where-park-strb-15821-10.webp)
![Metro Marine Piling Mount f/F-Series Round Fixtures [F-R1-PMT]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/metro-marine-piling-mount-f-f-series-round-fixtures-f-r1-pmt.webp)
![Furuno Retrofit f /MFD12 to TZTL12F [001-337-440-00]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/furuno-retrofit-f-mfd12-to-tztl12f-001-337-440-00.webp)
