Armstrong Fluid Technology 571110LF-340 Valve

Valve, Circuit Balancing, 1/2" NPT, Brass Body with EPDM Elastomers, 1.22-9.57 gpm Flow Rate Range, Circuit Balancing Valve with PT Ports rated at 300 psi maximum working pressure and -4 to 300 degree F operating temperature (Model CBV050VTCR)