Forespar Performance Products

Forespar MF 839 Vented Loop - 1-1/4"

SKU: 73267 · UPC: 028026190703 · MPN: 903011
4.7 · 0 reviews
Authorized dealer37% off
$30.49
$48.95Save $18.46
or 4 payments of $7.62 with Affirm
Out of stock
Free shipping
Orders $500 or more
Free returns
Within 30 days
Same day shipping
Order before 3 PM (EST)
Ask anything
We're here to help
$30.49
02 · Overview

Forespar MF 839 Vented Loop - 1-1/4" — Product description

MF 839 Vented Loop - 1-1/4"

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:

  • Barb Size: 1-1/4" (28.57mm)
  • Height: 7" (177.8mm)
  • Width: 9" (228.6mm)


The exhaust circuit is usually used in marine toilet systems and engine cooling systems. A simple valve system is installed on the top of the loop to allow air to enter the pipeline...
SKU: NVN-73267
MPN: 903011
UPC: 028026190703
03 · The numbers

Technical specifications

BrandForespar Performance Products
ModelForespar MF 839 Vented Loop - 1-1/4"
SKU / MFR#73267

Set product metafields under specs.* to populate this table.

04 · Before you buy

Frequently asked questions

No questions yet. Got one? Drop us a line.

05 · Customer voices

Customer reviews