Michael Phelps Legend Series Hot Tubs logo.
MasterPur Filtration System. Mast3rPur™ ~The Next Generation in Water Management System

The synergistic blend of three proven natural sanitizers provides water quality and spa care not found in any other spa, including salt systems. Plus, the Mast3rPur™ Water Management System dramatically reduces harsh chemical consumption, like chlorine, while removing many heavy metals and chloramines for water that looks crystal clear, smells fresh, and has a silky feel. Another innovative, exclusive benefit only available through Master Spas.


MasterPur - Ozone Logo.When absorbed in water, ozone kills pathogens and microorganisms, destroys organics, and oxidizes non-organic contaminants.

MasterPure - UV logo.When germicidal UV-C light is exposed to water it inactivates microorganisms and breaks down chloramines.

MasterPur - Copper and Zinc logo.The unique combination of copper and zinc in the patented EcoPur® filters creates an electro-chemical reaction to eliminate many microorganisms and remove heavy metals such as lead and mercury.

Each of the three elements are proven effective water management tools but when they are combined, their synergy makes them dramatically more effective through a chemical reaction known as Advanced Oxidation Process (AOP). AOP is superior to other systems because it produces powerful hydroxyl radicals that maximize disinfection and reduces chloramines fast and effectively. Clean, clear, fresh smelling, and better feeling water is available now with less work...exclusively on Master Spas.

Master Spas developed and installs our patented EcoPur® filters on every Michael Phelps Legend Series Spa. This allows us to assure you that the quality of the water is beyond all industry standards and we do it with the same techniques as Mother Nature. The EcoPur® filters are embedded with a proprietary combination of minerals including Zinc and Copper. As the water passes through the EcoPur®, it absorbs this blend of minerals which polish the water to a sparkle while eliminating most micro-organisms and removing heavy metals from the water such as lead and mercury. This leaves the water cleaner, clearer, and softer feeling all without harsh chemical smells.

Filtration... Naturally