Refurbishment inserts OSBY

Replacement insert 21 P replaces the insert in one-door valves of OSBY 2001 make. The replacement insert is controlled with a thermostat or handwheel. OSBY 2001 valve design with valve shape and marked with text OSBY. The steering wheel is white. The thread of the insert is M16x1. NOTE - For proper operation, existing valve housings are required to be in undamaged condition and the accompanying instructions are followed. This function cannot be guaranteed in case of aberrant valve designs, incorrect installation, insufficient heat capacity or other conditions we cannot control.