It is important to size filter according to pump and gallonage.
Improper sizing can result in equipment failure or inadequate filtration.
If in doubt, please e-mail us with spa or pool gallonage and pump size. With no moving parts or electrical switches to fail, Cartridge Filters do not have a defined termination point. Instead the fine interstices of the media matrix gradually plug up over time. In a typical spa, the culprit that plugs the media is perspiration and body oils combined with soaps, chemicals and very fine particulate. In a swimming pool, the loading is primarily debris along with suntan lotions and organic matter such as algae.