COMP Cams Valve Seals 3/8 Viton Metal B

Marsoni

M251S

$25.32

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

COMP Cams Valve Seals 3/8 Viton Metal BProviding the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 521 seals have a . 545" OD and fit applications with 3 8" valves and . 500" OD guides.

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I’ve been using these for several days now and I did notice a difference. I tend to get hot while sleeping, so I was curious if they would actually help, and they do feel cool when you lay on them. I also like that they’re soft and comfortable, not that weird texture some “cooling” products have. So far, I’ve been really happy with them.

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Reviewed in the United States on May 23, 2026

Verified Purchase

ryguy

Los Angeles, US

★★★★★ 5

Soft and smooth cover

Color: Grey, Size: Body（20"X 54"）

This is a nice pillow cover overall. The fabric feels good and it's comfortable to sleep on, especially compared to a more basic cotton cover. It is maybe a little thinner than I expected, so if you want something thick and heavy this probably isn't that. But for a soft smooth cover that fits and feels decent, I think it's worth it. No major complaints from me after using it.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 16, 2026