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20S
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Series 20S Residential Fire Sprinkler System Dual Check Backflow Preventers are installed at the residential fire sprinkler service connection to protect the water supply against polluted water being siphoned back from the sprinkler system. Maximum Working Pressure: 175psi (12.06 bar).
Approval/Certification Information
For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. Some certification agencies allow you to search by product name and brand.
Literature
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Select options below to identify the UPC, Order Code, and Repair Kit for a specific 20S