Australian Spa Parts

Accomodates Nature 2 cartridge - used in conjunction with m sg50b filter listed - DOUBLE the filtration of original cartridges for extended life
147mm H x 204mm D x Open square thread bottom spigot 58mm OD, 51mm ID (2 square threads 5mm apart) x 49mm D hole top with mushroom head Nature 2 plug PLUG SOLD SEPARATELY (70mm D plug top with bayonet fitting on underside) 
Sold individually (image may show multiple cartridges for ID purposes only)