


FC-3963 Replacement Pool Filter Cartridge - 50 Sq Ft
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
FC-3963 Replacement Pool Filter Cartridge - 50 Sq FtReplacement swimming pool filter cartridge element. Specifications Type Filter Cartridge Filtration Area 50 sq ft Top Type Handle Top Outside Bottom (OB) 2 11 16" Diameter 7" Length 10 3 4" Media Weight 3 oz MPN FC 3963 Cross References 1019401, 15051, 425708, 4900 393, 645544039637, 73532, AK 60033, APCC7499, C 7350, P 7350, PCD50 N, PLE 051 9210, SC786
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4.4 ★★★★★
Based on 1599 reviews
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Product Reviews
★★★★★ 5
My puppy tore it up in about 5min. She had a ball while it lasted.
Color: Crinkle Duck (Yellow), Size: Large
Cute, not durable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 5
Monkee-doodle loves that it has a crinkle sound when playing tug-of -war
Color: Crinkle Chicken (Yellow), Size: Large
Monkee-doodle likes this toy because it has a squeaker and it also has a crinkle noise maker inside. She loves playing with the toy and it’s easy to spot since it is bright yellow in color. It is suitable for dogs and doesn’t have any pieces that can come loose and harm your pet.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
★★★★★ 5
Perfect for a loved pet
Color: Clemson Tigers, Size: Small
This is a soft material. Runs a bit bigger but that even better when it comes to a fat belly pup. The price is great. Quality is great too
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
★★★★★ 5
Went with large, he weighs 25 lbs
Color: Ohio State Buckeyes, Size: Large
This is so cute and fits well. Our little guy weight 25 lbs and I went with size L. I like that it’s thin and can be worn around the house. Since it doesn’t fit skin tight he doesn’t mind wearing it. Keeps him a little warm too. Washes up nicely with no shrinkage.
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Reviewed in the United States on December 18, 2025
★★★★★ 5
Really nice but ordered the wrong size.
Color: Kentucky Wildcats, Size: X-Large
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Reviewed in the United States on November 22, 2025
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