205mm L x 150mm D Waterway 45 course Acme thread spa filter pww50 / 817-0050 - Anti-Microbial

Anti-Microbial replacement filter cartridge infused with agents such as Microban directly into the fibres.
Actively inhibits microbe growth on the cartridge material, also reducing odours and slime.

205mm H x 150mm OD x 46mm OD 1.5" Acme course square thread spigot x closed top with handle 
(thread 46mm OD)

Also replaces 817-0050 / pww50

Suits many brands of front access skim filters:
Waterway skimmer weir filters,
Signature Spas,
Spaquip filters
CMP filters, 
Rising Dragon filters, 
LVJ filters
Used on most spas in Australia since approx 2000

Sold individually (image may show multiple cartridges for ID purposes only)