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Pool Cartridge Deals

Posi Flo II Pool Filter Cartridges

 
 
 
Step 2: Locate your model number in the table(s) below.
     Your model number is located under the "Filter Type" section of the table(s) below.
     If you are replacing a Unicel or Filbur cartridge, locate your Unicel or Filbur cartridge model number under the "Cross-Reference" section of the following table(s).
 
Step 3: Verify with Measurements
     Once you have found the model number in the table(s) below, verify you have the correct pool
        cartridge by checking your measurements.
     Measure the cartridge(s) you want to replace and check those measurements against the dimensions  listed under the "Cartridge Specifications" section of the table(s) below.
     If you are unsure of how to measure your pool filter cartridge, Click Here.
 
Step 4: Continue to Product Details
     Once you have found the replacement cartridge you need, click on the corresponding "More Info"
        link for that cartridge.
     You will be directed to the Product Details page. From there you will continue on to make your
        purchase. That's it! That's all there is to it. If you have any questions, feel free to contact us.
 
Posi Flo II

Filter Type

Cartridge Specifications (in.)

Cross-Reference

 

Model #

SqFt

Diameter

Length

Top

Bottom

Unicel

Filbur

Item #

 

PTM50
(WC108-56S2X)

52

8 5/8

13  1/4

4 1/8

4 1/8 w/12 Slots

UHD-SR50

n/a

PSR50

More Info

PTM-70
(WC108-57S2X)

70

8 5/8

18 1/16

4 1/8

4 1/8 w/12 Slots

UHD-SR70

n/a

PSR70

More Info

PTM100
(WC108-58S2X)

100

8 3/4

25 7/8

4 1/8

4 1/8 w/12 Slots

UHD-SR100

n/a

PSR100

More Info

PTM135
(WC108-70S2X)

137

8 5/8

31 5/16

4 1/8

4 1/8 w/12 Slots

UHD-SR137

n/a

PSR137

More Info