Original Equipment Master Spas Filter Cartridge.
The Twilight & Legend Canister Filter is used on all Master Spas Twilight Series and Michael Phelps Legend Series Spas from 2017 to current, with the exception of the triangle shaped TS240. It is also used on the Therapool SE and Therapool D swim spas from 2017 to current.
This canister filter is embossed with "PMA-40L" and is a direct replacement for earlier model filters marked PMA40L F2M and also X268365.
Replacement parts from the manufacturer guarantee an exact fit and match, and are the best quality replacements available.