Backflow Preventers

Questions and Answers for Sentinel Drain Guard Sewage Backflow Preventer 3 in. and 4 in. Backwater Valve - Holmes Approved

Internet # 317037742

Model # DG100

Store SKU # 1005857047

Drain Guard Sewage Backflow Preventer 3 in. and 4 in. Backwater Valve - Holmes Approved

by

Sentinel

Questions & Answers (9)

Designed to effectively prevent sewage backflow into your house
Compatible with 3 in. and 4 in. floor drains for flexible use
Includes a fitted drain cover for enhanced backflow blocking

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