This is a genuine replacement part to suit the following Astral equipment with 50mm ports.

CTX MKII, FX pump
CA, ECA sand filter
UF80, Viron QL420, Viron QL540 cartridge filter
IX50 inline leaf canister
Viron & Eqcell, single point injection cell, solar cell, mixing cell

Discontinued items:
Viron P280, P300 pump
CTX pump
E Series pump
E-Combie pump
FG media filter
RX media filter
E Series (ECO) filter
ZX cartridge filter