PWW100ST / 6CH942 / SC737 / LOWER Hot Tub Replacement Filters

THE PWW100-ST FILTERS SIT ON TOP OF EACH OTHER  These spa replacement filters should fit the following: Alps Spas, Elite Sunbelt Spas, Leisureite Spas Upper Filter   Filtration Size: 45 sq ft Outside diameter: 6" (15.2cm) Top finish: Semi-circular Handle Bottom finish 1 3/4" (4.5cm) male slip fitting Length 8 1/4" (21cm) Upper: Pleatco ref: PWW100-ST Unicel ref 6CH-941 Filbur ref: FC-0360 Unicel ref: 6CH-941 Filbur ref FC-0360 Pleat count: 235   Lower filter   Filtration Size 45 sq ft Outside diameter 6" (15.2cm) Top finish: 1 3/4" (4.5 cm) open Bottom finish 1 1/2" (3.8cm) SAE thread. Length 8 1/4" (21cm)? Pleatco ref: PWW100-ST Unicel ref: 6CH-942 Filbur ref FC-0361 Pleat count: 235 Help! I'm not sure if this filter is the right one to fit? Don't worry! Our? filter finder?will help you to identify which filter you need and furthermore delivery is?free!