80651
Diameter8-1/2"|216mm
Length10-1/2"|267mm
Top3" open(76mm)
Bottom3" open(76mm)
Media3 oz
Pleat Count
Surface Area65 sq.ft
ReplacesUnicel: C-8465      Filbur: FC-3960      Pleatco: PWK65      
OEMCaldera Spas/76136,Hot Spring Spas/31114/71827/71828,Tiger River
80602
Diameter8"|203mm
Length11-5/8"|295mm
Topsemi-circular handle
Bottom2" male thread/MPT(51mm)
Media3oz
Pleat Count
Surface Area60sq.ft
ReplacesUnicel: 8CH-60      Filbur: FC-0510      Pleatco: PIF60-F2M      
OEMDiscovery Spas,Unicel/60 sq.ft. top load
80601
Diameter8"|203mm
Length9-1/4"|235mm
Topsemi-circular handle
Bottom2" male thread/MPT(51mm)
Media3oz
Pleat Count
Surface Area60sq.ft
ReplacesUnicel: 8CH-852      Filbur: FC-0515      Pleatco: PMA60-F2M      
OEMMaster Spas,Unicel/60 sq.ft. top load,Unicel/85 sq.ft.,US Tooling & Spa
80521
Diameter8-11/16"|220mm
Length13-5/16"|338mm
Top4-3/16" open(106mm)
Bottom4-3/16" open w/12 concentric slots(106mm)
Media3oz
Pleat Count
Surface Area52sq.ft
ReplacesUnicel: UHD-SR50      Filbur: FC-2530      
OEMSta-Rite Posi-Flo 50GPM-TX/50TX/50TXR/T-50TX/T-50TXR-II PTM50
80505
Diameter8-15/16"|227mm
Length10-1/4"|260mm
Top3-3/4" open(95mm)
Bottom3-3/4" open(95mm)
Media4oz
Pleat Count
Surface Area50sq.ft
ReplacesUnicel: C-8449      Filbur: FC-0900      Pleatco: PAST50      
OEMAquatemp 2505 CE Terra/18218RO100 C-8449
80504
Diameter8-1/2"|216mm
Length7-1/4"|184mm
Topsemi-circular handle
Bottom2" male thread/MPT(51mm)
Media3oz
Pleat Count
Surface Area50sq.ft
ReplacesUnicel: 8CH-502      Filbur: FC-3052      Pleatco: PVT50WH-F2L      
OEMVita Spas/PVT 50WH,Unicel/50 sq.ft. top load