This high-quality replacement 40mm spider gasket is designed for use in Monarch EcoPure, Reliance MKIII, and Crystal Clear FG sand filters fitted with 40mm multiport valves.

Suitable for the following models:
Sand Filters: F14, F16, F18, F21, F25 & F28 (with 40mm valve)
Crystal Clear: 21" & 25" – DCC2140, DCC2140-1, DCC2540, DCC2540-1, FG18, FG21, FG25
Ecopure: 21" & 25" – DEP2140, DEP2140-1, DEP2540, DEP2540-1
Valves: DMPV40 & DMPV40-1