semi-permeable membrane rinses contaminants to the drain. High quality, filtered drinking water is produced and conveniently stored in a sealed tank. The PuROTwist 4000 lead-free faucet easily delivers an abundant supply of clear, clean, and fresh drinking water to you and your family.

Four Stage Purification Process

Stage 1   5 Micron Sediment Filter: Removes dirt, sediments, sand, and other physical particles.
Stage 2   Pre Carbon Filter: Provides protection to the RO membrane from free chlorine and sediment.
Stage 3   Reverse Osmosis Membrane: Membrane reduces a high percentage of dissolved inorganics.
Stage 4   Post Carbon Filter: A final polishing process that enhances and clarifies your drinking water.

The Water Quality Association (WQA) Gold Seal represents the most credible and independent testing and validation entity in the water industry. The WQA’s Gold Seal represents quality assurance through comprehensive testing and continuous research and evaluation of water treatment technologies.