This Caleffi serviceable check valve prevents reverse flow in potable water and hydronic systems using a reliable internal mechanism that can be accessed for maintenance. The three-quarter-inch female NPT connections provide easy installation, while the low-lead brass construction ensures long-term durability and code compliance.

Weight	1.1 lb
Height	6.00 in.
Length	6.00 in.
Material	Brass
Type	Check Valves
Width	6.00 in.
Inventory Number	CALENA51253
MPN	NA51253