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Double Check Valve Assembly Backflow Preventers Sizes: 2 ½ -10 IN (65 – 250mm)

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA