A type of valve that relies on two-part revolving disks in a sealed cylinder. Each disk has a port in it that, when aligned with the other, will allow water to pass through.

A type of valve that relies on two-part revolving disks in a sealed cylinder. Each disk has a port in it that, when aligned with the other, will allow water to pass through.
Looking for certified mold assessment in Southeast Michigan? We provide thorough mold inspections and testing services to ensure your home…
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