Forespar MF 839 Vented Loop - 1-1/4" - 903011

Marsoni

M251S

$34.99

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

Forespar MF 839 Vented Loop - 1-1/4" - 903011MF 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

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We offer a 30-day return/exchange service after receiving.
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Such a great pillow I’m buying another one! You can add or subtract stuffing to your liking. It’s really nice quality, quilted and soft. Best pillow ever. Super comfy and great sleep. Pretty firm with all the stuffing. Perfect the way it came with stuffing on the side. My husband loves it and now I want one.

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Reviewed in the United States on May 15, 2026

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Alli

Grantham, US

★★★★★ 5

Totally worth the money

Size: King (Pack of 1), Size: King (Pack of 1)

Right off the bat, the packaging is absolutely adorable and felt like I was buying a premium product. I love that this pillow is adjustable and as a side sleeper, I needed a pillow that is both firm and supportive of my neck. This hits all the boxes. We will be buying more of these for our bed!

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Reviewed in the United States on June 1, 2026

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PublicMe

Natrona Heights, US

★★★★★ 5

Really Happy With These Pillows!

Color: Blue, Size: Queen(2 Pack)-20'*30'

**Review: Really Happy With These Pillows!** I purchased these pillows and couldn’t be happier! First – they’re cool on *both* sides—finally! I’m not sure why that’s so rare (probably to cut costs), but these actually have cooling material on both sides, and it works really well. Second – the venting around the center helps keep them from getting hot at night. A nice touch that makes a difference for hot sleepers. However, the third feature is the best: the filling. Like many adjustable pillows, you can add or remove the fill, and these come with a small extra bag. The base amount was just right for most people. I had to remove some for my wife but added a bit more to mine. The fill itself is excellent—soft but supportive. You sink into it, but don’t hit bottom. These pillows also have a good weight to them, so they don’t feel cheap. They fluff up great and seem very well made. I followed the recommended dryer run when I first received them and had no odor issues at all. Highly recommend!

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Reviewed in the United States on August 25, 2025

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Steve Texas

Phoenix, US

★★★★★ 5

Awesome Pillows

Color: Blue, Size: King(2 Pack)-20'*36'

AWESOME, they actually stay cool!!! Extra foam to firm and great instructions how to remove foam and make softer. Fantastic product

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Reviewed in the United States on April 16, 2026

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