Technical Data: Pin Valve Dimensions: L43 x W15 x D15mm Pin Valve Actuator thread size: Giacomini Adaptor Pin Valve Manifold thread size: 3/8" Pin Valve (from 3/8"BSP thread to bottom): 14mm This TRV Bonnet is a replacement for R553V Manifold 3/8", 1/2" and 3/4" Valves. Bonnet for thermostatic valves. Part no. P12AX011
