Easy to Own, Easy to Enjoy

A Michael Phelps Signature Swim Spa by Master Spas has many features making it easy to maintain — leaving more time for enjoying it.

Clean, Refreshing Water

You want to spend your time enjoying your spa, not worrying about water care. So we created EcoPur® Charge Master Core Technology - an exclusive filtration system that makes maintaining your swim spa's water easier.

EcoPur Charge logo

EcoPur® Charge Master Core Technology

Exclusively by Master Spas

Using the same multi-stage filtration techniques as Mother Nature, EcoPur Charge® relies on a unique blend of copper and zinc to create an electro-chemical reaction that eliminates many micro-organisms and removes heavy metals. Best of all, it is designed so your spa can be ready to use at any time, with minimal amounts of water maintenance, so you can simply relax.

Using EcoPur® Charge swim spa filtration reduces the amount of chemicals needed, saving you money each month and safeguarding your investment by protecting the swim spa's plumbing and equipment against the corrosive effects of chlorine.

The new EcoPur® Charge is made from Master Spas' filtration fabric. With this design, the fabric is wound tightly into a nautilus master core, creating a catalytic cell. The nautilus fabric cell is encased by a unique "spring core" that allows for maximum water flow and water "charging." As the swim spa water comes in contact with the EcoPur® Charge master core, a chemical reaction causes zinc and copper hydroxides to form in controlled amounts. Like Mother Nature, when controlled releases of copper and zinc oxides are carried into the filtered swim spa water, they kill bacteria and create a hostile environment for algae and fungal growth.

Every Michael Phelps Signature Swim Spa by Master Spas also features an advanced Ozone system that kills pathogens and microorganisms; destroys organic materials; and oxidizes non-organic contaminants to keep your water clean and refreshing every time you use your swim spa.

how the ecopur charge system works


Our DuraMaster Premium polymer skirting is so durable, it comes with a lifetime warranty.

Swim Spa backyard planning guide
Get Your Backyard Planning Guide!