Spider Gasket 40mm Neptune Emaux Monarch Reltech 40mm MPV Gasket
 
Generic 40mm spider gasket for multiport valve (Sand Filters)
 
Suit numerous model for Neptune, Davey, Emaux, Monarch, Reltech as per the list below
 
Neptune ECSF500, ECSF650, SF500 & SF650 post Jan 2020
Davey FG18-25
Emaux V Series
Monarch Ecopure & Reliance MKIII
Reltech PF Series