


FC-3743 Replacement Pool Filter Cartridge - 10 Sq Ft
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
FC-3743 Replacement Pool Filter Cartridge - 10 Sq FtReplacement swimming pool filter cartridge element. Specifications Type Filter Cartridge Filtration Area 10 sq ft Outside Top (OT) 1 3 4" Outside Bottom (OB) 1 3 4" Diameter 4 3 4" Length 8" Media Weight 3 oz MPN FC 3743
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4.7 ★★★★★
Based on 1910 reviews
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Product Reviews
★★★★★ 5
Great! Worth the money
Size: 4.5", Style: Open
These things are amazing!!!! So strong you can hang a 20ft ladder and they don’t budge at all. Soooo easy to use especially in a metal building/shed
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
★★★★★ 4
Good product. Know the limits.
Size: 6 Inch, Style: Open
These are very nice. Sure beats drilling holes in your steel.
However, 45lb is a stretch. Will easily hold 25lbs. However 35+ is a stretch, especially if your walls shift a little due to be close to a door. Will definitely order more, just important to understand the limits. Thanks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
★★★★★ 5
Finally, a product that meets all of its advertised claims!
It seems to me like this product is always out of stock. Of the ones I have received and been able to use. They work as advertised and hold an incredible amount of weight. It is very easy to put them on and off, but once they are latched down, you could not remove them by hand without bending the hooks I would like to have a few more boxes to use in my steel building.
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Reviewed in the United States on January 13, 2026
★★★★★ 5
Magnet hooks you need!
Size: 4.5", Style: Open
I have been using these all over our shop and helps keep chords, tools and other items off the floor and more organized. I like the ease of the magnet, and it looks like. Built to last. I wish they were not so expensive.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Great product
Size: 4.5", Style: Open
Strong grip
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Reviewed in the United States on April 18, 2026