In short
The Keystone is the acid neutralizer in the Three Rivers lineup, in two sizes: natural calcite media gently raises the pH of acidic water, with a calcite plus Corosex blend available for stronger correction. It is installed across the Greater Pittsburgh area to protect pipes, fixtures and appliances downstream from corrosive water.
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Pure water is neutral, but its pH can slip on the way to your tap. The Keystone safely brings acidic water back toward neutral to protect everything downstream, with tank sizes and media strengths matched to your water.
- Calcite Correction: Calcite media provides a gentle adjustment for mild acidity.
- Calcite + Corosex Blend: Extremely low pH water needs an extra boost with a more aggressive neutralization media. Multiple calcite plus Corosex mixes are available for stronger correction capabilities.
Why choose The Keystone
Advanced Construction Easy In-Field Servicing Whole-Home Protection
Specifications
- Two Sizes Available.
- All Natural Media: soft, rock-forming minerals dissolve to safely raise pH.
- Power to Perform: the media blend is tailored to match the pH of your water; Safety is Standard.
