★★★★★ 5
Fits great
Excellent value for the money and fits great. Does exactly what you need it to.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
Pentair Pac-Fab Mytilus B / Pac-Fab Mytilus Replacement Cartridge - 100 Sq Ft (PFAB100)
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Pentair Pac-Fab Mytilus B / Pac-Fab Mytilus Replacement Cartridge - 100 Sq Ft (PFAB100)Replacement filter cartridge for Pentair Pac Fab Mytilus B, Pac Fab Mytilus, Pac Fab Mitra, Pac Fab Mytilus FMY swimming pool filter systems. Compatible Filter Systems Pentair Pac Fab Mytilus B Pentair Pac Fab Mytilus (60, 80, 100) Pentair Pac Fab Mitra Pentair Pac Fab Mytilus FMY Specifications Type Filter Cartridge Filtration Area 100 sq ft Outside Top (OT) 3 1 16" Outside Bottom (OB) 3 1 16" Diameter 7 7 8" Length 22 1 8" Media Weight 4 oz MPN
Quick Dispatch:
Your Pentair Pac-Fab Mytilus B / Pac-Fab Mytilus Replacement Cartridge - 100 Sq Ft (PFAB100) orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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You'll receive a tracking link by email once your Pentair Pac-Fab Mytilus B / Pac-Fab Mytilus Replacement Cartridge - 100 Sq Ft (PFAB100) ships.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.8 ★★★★★
Based on 691 reviews
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Product Reviews
★★★★★ 5
buen articulo funciona perfecto.
buen articulo funciona perfecto.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 5
Just not right.
Color: Blue
Well this is a crazy situation it says it fit my car so I bought it think it was different from any others so I tried it. It DOES NOT fit a 2008 impala. It is not wide enough one way but to deep the other, even if rotated. I even tried over and over but it did work.
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Reviewed in the United States on August 24, 2025
★★★★★ 1
Bad fit and bad information
Color: Blue
When I purchased this, it said it fit my 2007 Toyota Prius. Not even close. The problem with the smaller item purchases, is you end up giving the company money and it’s just not worth my effort to re-bag it, and find where I would need to return it. I would be extremely cautious if purchasing from this company.
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Smells fresh!
Color: Blue
This filter does a great job of keeping my truck AC smelling fresh. It has a bit of a chemical smell the first day or so but clears up nice
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Reviewed in the United States on May 22, 2026
