BP Spa Repair, Inc.

45 square foot filter cartridge.

Outside Diameter:  5-3/16"

Top Opening Diameter:  2-1/8"

Bottom Opening Diameter:  1-1/2" threaded

Overall Length:  10-1/16"

Commonly Used By:  Free Flow

Replaces:  Pleatco PFF50P, Unicel 5CH-45