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Pentair Sta-Rite Posi-Flo II Replacement Cartridge - 137 Sq Ft (PSR137)
Pentair Sta-Rite Posi-Flo II Replacement Cartridge - 137 Sq Ft (PSR137)
Pentair Sta-Rite Posi-Flo II Replacement Cartridge - 137 Sq Ft (PSR137)
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Pentair Sta-Rite Posi-Flo II Replacement Cartridge - 137 Sq Ft (PSR137)

Marsoni M251S
Sale price$122.10
Pay 4 payments of $30.52 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Pentair Sta-Rite Posi-Flo II Replacement Cartridge - 137 Sq Ft (PSR137)Replacement filter cartridge for Pentair Sta Rite Posi Flo II swimming pool filter systems. Compatible Filter Systems Pentair Sta Rite Posi Flo II (PTM135) Specifications Type Filter Cartridge Filtration Area 137 sq ft Outside Top (OT) 4 3 16" Outside Bottom (OB) 4 3 16" Diameter 8 11 16" Length 31 1 4" Media Weight 4 oz MPN PSR137 Brand Compatibility Pentair Sta Rite Cross References 23701, 46174, 4900 209, 645544025708, AK 8022, FC 2570, PC 2570,
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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.
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4.8 ★★★★★
Based on 702 reviews
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Product Reviews
N
Verified Purchase
Nat
Pawtucket, US
★★★★★ 1
Size information reversed. Smalls are medium and mediums are small.
Flavor Name: Bacon, Size: Medium
I love the product but the description is frustrating. I ordered the medium size bones expecting the 7 inch bones, but recieved the 5 inch bones. Apparently if you want the 7 inch bones you should choose small instead of medium. That makes no sense and is so irritating.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
R
Verified Purchase
ReMu
Alexandria, US
★★★★★ 5
Holds up longer than other toys
My dog is picky. She lives this one. Keeps her entertained. Good size. Good Value for money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 15, 2025
J
Verified Purchase
Jennie D.
Port Orchard, US
★★★★★ 4
Keep my dog entertained…for a while!!
My dog absolutely loves this toy! I spread a bit of peanut butter on it and he gets so excited every time. It keeps him busy for a few minutes, though he licks it clean super fast. Still a great way to give him a little treat and mental stimulation.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 25, 2025
C
Verified Purchase
CBLace
Lexington, US
★★★★★ 5
Performs as promised. Great value.
FANTASTIC!!! More than expected. We use it outside. Our 10 m.o. GSD loves it! It dosen't bounce like a ball. But it gives her plenty of exercise. The chewability is unbelievable. Definitely great product. Will buy & recommend for any chewer pup!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 22, 2025
V
Verified Purchase
Virginia B
Battle Creek, US
★★★★★ 3
Seems okay
The dogs weren’t crazy about this size maybe a little too big for their jaw size. I have two Frenchies
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 25, 2026

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