15 sq. ft. Cartridge Filter Haugh’s, Jacuzzi Leisure C-22 C-4604 FC-3758 Diameter…………………………………4-1/4" Length……………………………………17-7/8" Top End Cap: id/config……………..1-15/16" / open Bottom End Cap: id/config…………1-15/16" / open Also used on: Jacuzzi Leisure Prod. (Canada) C-22 cartridge filter, OEM P/N 1370031

25 sq. ft. Cartridge Filter Santanna C-4428 FC-2620 Diameter…………………………………4-15/16" Length……………………………………9-13/16" Top End Cap: id/config……………..2-1/8" / open Bottom End Cap: id/config…………2-1/8" / open The cartridge is used on: Santanna

20 sq.ft. Cartridge Filter Saratoga Spa 4CH-920 FC-0124 Diameter…………………………………4-5/8" Length……………………………………6-3/4" Top End Cap: id/config……………../ molded cone handle Bottom End Cap: id/config…………/ 1-1/4" SAE thread

50 sq. ft. Cartridge Filter Advantage Electric C-4349 FC-6310 Diameter…………………………………4-15/16" Length……………………………………17-3/8 Top End Cap: id/config……………..2-1/8" / open Bottom End Cap: id/config…………2-1/8" / open The cartridge is used on the following spas: Advantage Mfg., OEM P/N ELE-50 (top load)

25 sq. ft. Cartridge Filter Hayward CX225RE, American Commander II C-4325 FC-1220 Diameter…………………………………4-5/8″ Length……………………………………11-7/8″ Top End Cap: id/config……………..2-1/16″ / open Bottom End Cap: id/config…………2-1/16″ / open The load cartridge is used on: Hayward Pool Products MicroStar-Clear C225 (in-line), OEM P/N CX225RE Pentair Pool Prod Commander II (in-line) , OEM P/N 57010500 Apollo Spas Emerald Spas Sonoma Spas Note: Hayward original is 4-3/4″ OD and 11-13/16″ overall length. American original is 4-11/16″ OD.

50 sq. ft. Cartridge Filter Grecian Spa C-4350 FC-3072 Diameter…………………………………4-5/8" Length……………………………………23-3/4" Top End Cap: id/config……………..2-1/16" / open Bottom End Cap: id/config…………2-1/16" / open The cartridge is used on: Discovery Spas

60 sq.ft. Cartridge Filter Icon Spas C-4360 FC-0179 Diameter…………………………………4-1/4" Length……………………………………23-3/4" Top End Cap: id/config……………../ semi-circular handle Bottom End Cap: id/config…………2" / open Also used on: Pleatco Image Spa Model # 739, OEM P/N PIC60

30 sq. ft. Cartridge Filter Skim filter, Lifestyle C-4431 FC-3078 Diameter…………………………………4-15/16" Length……………………………………10-3/8" Top End Cap: id/config……………../ closed Bottom End Cap: id/config…………2-1/8" / open The cartridge is also used on: Discovery Spas

19 sq. ft. Cartridge Filter Alcove, Dream Maker Spa 4CH-21 FC-0121 Diameter…………………………………4-5/8" Length……………………………………8" Top End Cap: id/config……………../ molded cone handle Bottom End Cap: id/config…………/ 1-1/2” male thread/MPT Used on: Alcove Atera Spas (Four Seasons Home Resort Products) Dream Maker Spas Pageant Spas Saratoga Spa, OEM P/N 20245-238 Vita Spas Note: Remove "pad adapter” from the skimmer before threading Unicel MPT directly into the suction fitting., OEM P/N PVT 25N Note: Replaces any cartridge that has an MPT fitting or a 1.9" id with disposable adapter.

75 sq. ft. Cartridge Filter Rainbow RTL-75, Custom Molded Products C-4975 FC-2395 Diameter…………………………………4-15/16" Length……………………………………20-1/8" Top End Cap: id/config……………..2-1/8" / open Bottom End Cap: id/config…………2-1/8" / open The cartridge is used on the following spas: Custom Molded Products Top Mount Skim, OEM P/N 25390 EZ Twist Top Mount Skim Top Load Pressure Dakota Spas Emerald Spas Hydro Pool Industries Nahani Spas by Maax Pentair Pool Prod Dynamic Series V – DSC-75, OEM P/N R173435 Dynamic Series II & III – RTL/RCF, OEM P/N 17-2632