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COMP Cams Valve Seals 5/16in PTFE W/.500

Marsoni M251S
Sale price$48.95
Pay 4 payments of $12.24 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
COMP Cams Valve Seals 5/16in PTFE W/.500COMP's Positive Stop PTFE valve seals offer more clearance for dual springs with better sealing than o ring or umbrella seals. These 513 seals have a . 600" outer diameter and fit applications with 5 16" valves and . 600" OD valve guides.
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  • We offer a 30-day return/exchange service after receiving.
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4.8 ★★★★★
Based on 1640 reviews
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JJW
Lowell, US
★★★★★ 3
Mounting system doesn’t align on one of three shelves.
Color: Walnut, Size: 3 Pack
Nice shelves. Install was super easy except on one of the three shelves. The main mounting shelf holes were off so the shelf will not slip onto horizontal mounting poles unless I modify the shelf. So a 20 minute job becomes a two hour job. The mounting system does appear very sturdy just not aligned.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
M
Verified Purchase
Monkey
Phoenix, US
★★★★★ 5
Good buy
Color: Black, Size: 24 inches
The shelves are very nice and look great in my bathroom. Easy to hang. Glad I purchased.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
N
Verified Purchase
Nibi
Boise, US
★★★★★ 5
Good shelf
Color: Black, Size: 24 inches
Lightweight shelves. Easy to assemble
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
K
Verified Purchase
Keisha
Pawtucket, US
★★★★★ 4
Sturdy
Color: White, Size: 15 inches, Color: White, Size: 15 inches
Love the shelves. Nice touch to my bathroom. Easy enough to install. They're not holding anything too heavy so can't speak too much on that but they do have a nice width.
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Reviewed in the United States on March 30, 2026
K
Verified Purchase
Kaitlynn
Belleville, US
★★★★★ 5
Good for light stuff
Color: Black, Size: 15 inches, Color: Black, Size: 15 inches
Good product. Very light though and if it’s in dry wall won’t hold something really heavy. I don’t think it would hold 20 pounds just light. I put over my washer and dryer and put one right on top that way I can put heavy stuff on that side without it weighing down and being ripped out of the wall. I won’t be putting heavy stuff on the right side I used 4 pieces and the wall is about 60-62 inches long
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Reviewed in the United States on December 5, 2025

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