Coast Spas Filter - Medium (338 mm).
 
This is found on most Coast Spas models or Northwind models. Otherwise known as Coast Spas 50 filter.
 
Length: 338 mm Diameter: 125 mm Top: 54mm - hole Bottom: 54mm - hole
 
Fits Coast Spas Models - Helios, Freedom, Zenith, Vantage and more.
(unsure which model you have? Check ID plate in pump/access area)
 
Price is for a single filter.