MPV Spider Gasket - Zodiac Titan 40mm ZT500-650 - Part W02311002
 
Spider Gasket 40mm suits the following Zodiac MPV / Filters
Titan ZT500 - ZT650   (Does NOT suit ZT650B these are different gaskets)
Titan TP500-TP700
Fibreglass filter MPV APV650
Genuine part number - W02311002
 
Please note this gasket does NOT suit ZT650B these are different gaskets which are purchased with the diverter as one part.  See part number W89280805.