Zurn 350XL Double Check Backflow Preventer

Provides low health hazard protection in potable water applications.
The EZSwap™ removable pressure vessel provides safe and easy line flushing, quick winterization, and simple maintenance and repair.
1-1/2" double check assembly with integral male 45° flare SAE test fitting.
EZSwap removable pressure vessel is quickly removed and replaced with Flush Tool (FLUSH) for simple line flushing to remove fouling debris.
Labor savings from ease of flushing with only one person saves up to 15 minutes per installation.
Quick and thorough winterization with Blow-Out Accessory prevents costly freeze damage and improves productivity when freeze is quickly approaching.
Patented EZSwap Pressure Vessel can be removed and replaced in seconds, reducing repair cost and water system down time.
EZSwap Pressure Vessel is serviceable off-line and reusable, allowing maintenance and repairs to be performed in the safety of the work truck or shop.
Stainless steel shut-off valve handles, hardware, and struts resist corrosion.
Low-lead law compliant