Replacement O-ring for Cartridge Tank Lid: R-ORING LID

Replacement o-ring for top or bottom lid of 8x40" cartridge tank filters.  Part number R-ORING LID

Fits Chandler Systems MF40 Monstr Flow, DROP FC-40, PF40 Pioneer, CTF8. and CTF8-HF.  Also used on Enpress ONE E3 filtration systems.