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FC-3744 Replacement Pool Filter Cartridge - 7 Sq Ft

Marsoni M251S
Sale price$18.10
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Get it in 3 business days with 1 day shipping. Friday, May 29
FC-3744 Replacement Pool Filter Cartridge - 7 Sq FtReplacement swimming pool filter cartridge element. Specifications Type Filter Cartridge Filtration Area 7 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 3744 Cross References 390797, 4900 325, 645544037442, AK 30051, C 4307, PGF 7, PGF7, PLE 051 9430
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4.8 ★★★★★
Based on 1493 reviews
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Verified Purchase
Ron McCrea
Grantham, US
★★★★★ 5
Just as good as OEM
Exactly what I expected...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 9, 2025
W
Verified Purchase
wes
Louisville, US
★★★★★ 5
Fit perfectly
Truly impressive, bought these and a set from a us boat supplier a thermostat made in the USA . They came with the gasket separate . I could not figure out how to put it together . I used these in my mercury optimax 135 hp . They fit perfectly and appear to be working great at a quarter the cost .
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Reviewed in the United States on August 29, 2024
A
Verified Purchase
Amazon Customer
Cuba, US
★★★★★ 5
Handles the power
Size: 5FT, Style: 8AWG
Used for leads to handle high Amperage. Replaced cheesy 12 gauge leads that came with the unit
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Reviewed in the United States on January 28, 2026
M
Verified Purchase
MDM
Phoenix, US
★★★★★ 5
Good stuff!
Size: 5FT, Style: 8AWG
Good quality silicone insulated wire. It’s very flexible and solders really well. The silicone insulation can’t be beat for heat resistance. I will definitely purchase again.
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Reviewed in the United States on January 12, 2026
J
Verified Purchase
Jarrett Austin
Bozeman, US
★★★★★ 5
Awesome Wire
Size: 15FT, Style: 8AWG
These work great! I purchased these for my subwoofer and they do a great job! Super flexible! They have no weird smells either! Would buy again!
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Reviewed in the United States on November 7, 2025

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