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REPLACEMENT FILTER CARTRIDGES

We have broken the list down by outside diameter measurement, and by Spa Manufacturers (i.e. Aber Hot Tubs = A manufacturers). Please click on "By outside diameter" or "By Manufacturer" to the left and choose which O.D. or Letter you would like to see.

HOW TO FIND A FILTER CARTRIDGE REPLACEMENT

1. Measure the outside diameter of the cartridge (in inches, +/- 1/32”).
2. Measure the cartridge length (in inches, +/- 1/16”) including end caps but excluding any handles or other extensions. Unicel recommends measuring through the center (if possible) rather than along the outside edge.
3. Identify the cartridge outside edge end cap configuration using the chart on the opposing page. If the top and/or bottom is “open,” measure the inside diameter (in inches, +/- 1/32”) of the top and/or bottom.

Filters

END CAP CONFIGURATIONS

Filter Cartridge

2" Male Slip Fitting

Filter Cartridge

1-3/4" Male Slip Fitting

Filter Cartridge

1-1/2" Male Slip Fitting

Filter Cartridge

1-1/2" or 2" SAE Thread

Filter Cartridge

1-1/4" SAE Thread

Filter Cartridge

2" Male Thread/MPT

Filter Cartridge

1-1/2" Male Thread / MPT

Filter Cartridge

Bar Handle

Filter Cartridge

Castle

Filter Cartridge

Castle with Cross Ribs

Filter Cartridge

Closed

Filter Cartridge

Closed with 2" SAE Thread

Filter Cartridge

Closed with 3-Step Edge

Filter Cartridge

Closed with raised Ring

Filter Cartridge

Closed with String Handle

Filter Cartridge

Closed with String Loop

Filter Cartridge

Closed with Y Stand-Offs

Filter Cartridge

Hose Fitting

Filter Cartridge

Injection Molded Cone Adapter

Filter Cartridge

Injection Molded Knob Handle

Filter Cartridge

Male Slip Fitting with Molded O-Ring

Filter Cartridge

Male Slip Fitting with MPT

Filter Cartridge

Molded Cone Handle

Filter Cartridge

Open

Filter Cartridge

Open with 12 Concentric Holes

Filter Cartridge

Open with 12 Concentric Slots

Filter Cartridge

Open with Beveled Edge

Filter Cartridge

Open with Molded Gasket

Filter Cartridge

Open with Molded O-Ring

Filter Cartridge

Open with Slots

Filter Cartridge

Open with Step

Filter Cartridge

Open with Twist Lock

Filter Cartridge

Semi-Circular Handle

 

Home Owners -use of our online catalog is free for reference only. We only sell to qualified wholesale customers.

- 2" to 2 15/16"
- 4" to 4 15/16"
- 5" to 5 15/16"
- 6" to 6 15/16"
- 7" to 7 15/16"
- 8" to 8 15/16"
- 9" to 9 15/16"
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