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The 4" Double Check Valve Assembly OS&Y Female x Grooved by Zurn Wilkins is a durable backflow prevention device designed for fire protection and plumbing systems
Virtually Indestructible Housing: Roto-molded polyethylene shell is dent- and leak-proof
this fitting supports critical infrastructure in fire safety applications
Optional Upgrades: Insulated Dual Lance and Roll Cage provide added safety and convenience
Kidde Analog Class A-B Two-Wire Module UL/FM Approved Reliable Fire Safety Integration Fire Protection Parts The 4" Double Check ValveAnalog Class A B Two Wire Module by Kidde offers reliable and efficient fire detection communication, ensuring seamless integration within your fire protection and life safety systems for enhanced building safety. UL FM Approved: Meets the highest industry standards for safety and performance. Versatile Compatibility: Designed to work fluently with both Class A and Class B wiring configurations. Easy Installation: Simplifies wiring, reducing setup