Forespar MF 843 Vented Loop - 5/8" - 903003

Marsoni

M251S

$32.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Forespar MF 843 Vented Loop - 5/8" - 903003MF 843 Vented Loop 5 8" 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

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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I got this for a trailer not a truck and it works perfectly for dump runs instead of using a tarp and bungies. Comes in a little bag I'll never use again and had some accessories i don't understand, but if you want a springy net for something that's cheap enough not to care about breaking this is your product

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Reviewed in the United States on September 7, 2025

Verified Purchase

Theresa Laskowsky

New York, US

★★★★★ 5

Its good

It works, just doesn't hold well when the inside of car is hot

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Reviewed in the United States on April 11, 2026

Verified Purchase

Robert

Charlottesville, US

★★★★★ 1

work as it was intended to

the first time I attached it fell off with in an hour. i didn't even have my phone mount it. i try s second time only lasted 20 minutes. the last time i tried it only lasted a few minutes

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Reviewed in the United States on April 21, 2026

Verified Purchase

Vanessa

Bozeman, US

★★★★★ 5

Exceeds my expectations!!

Great product design, very versatile with an incredible magnetic. Worth its weight in gold. Works perfectly as described, actually surpasses my expectations. I sail and have placed this by my helm for my device, which I use for navigation and other purposes. Despite encountering severe weather conditions, it has never failed me. I’ll be ordering more of these in the future for my other devices and as gifts.

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Reviewed in the United States on April 27, 2026

Verified Purchase

Sherron J Badour

Lexington, US

★★★★★ 5

Hands-free video watching

Handy tool especially while I am working at this computer. I can work and watch a video at the same time. Tool holds it tight with a strong magnet. (Turned my phone around for the pic for privacy)

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Reviewed in the United States on April 25, 2026