80503
Diameter8"|203mm
Length6"|152mm
Topsemi-circular handle
Bottom2" SAE thread(51mm)
Media3oz
Pleat Count
Surface Area50sq.ft
ReplacesUnicel: 8CH-950      Filbur: FC-0536      Pleatco: PBF50-F2S      
OEMBullfrog Spas/10-1035,Unicel/45 sq.ft. top load
80502
Diameter8-1/2"|216mm
Length7-1/4"|184mm
Top1-9/10" open(48mm)
Bottom2-3/8" open w/slots(60mm)
Media3oz
Pleat Count
Surface Area50sq.ft
ReplacesUnicel: C-8350      Filbur: FC-3053      Pleatco: PVT50W      
OEMPleatco/Vita Spas/PVT 50W,Vita Spas/PVT 50W
80501
Diameter8"|203mm
Length9"|229mm
Top2-1/16" open(52mm)
Bottom2" male slip fitting(51mm)
Media3oz
Pleat Count
Surface Area50sq.ft
ReplacesUnicel: C-8450      Filbur: FC-3310      Pleatco: PCS50N      
OEMColeman Spas/100593,Maax Spas of AZ
80402
Diameter8"|203mm
Length6-3/4"|171mm
Top4" open w/ raised ring(102mm)
Bottom4" open w/ raised ring(102mm)
Media3oz
Pleat Count
Surface Area40sq.ft
ReplacesUnicel: C-8341      Filbur: FC-1007      Pleatco: PMA45-2004-R      
OEMMaster Spas/Micro Filter
80401
Diameter8-1/2"|216mm
Length10-3/4"|273mm
Topsemi-circular handle
Bottom4-1/16" open(103mm)
Media3 oz
Pleat Count
Surface Area40 sq.ft
ReplacesUnicel: C-8340      Filbur: FC-1295      Pleatco: PA40SF      
OEMHayward Pool Products Skim filter/CX400RE
80372
Diameter8-11/16"|220mm
Length9-3/4"|248mm
Top4-3/16" open(106mm)
Bottom4-3/16" open w/12 concentric slots(106mm)
Media3 oz
Pleat Count
Surface Area37 sq.ft
ReplacesUnicel: UHD-SR35      Filbur: FC-2520      
OEMSta-Rite Posi-Flo 35GPM-TX/35TX/35TXR