Webstone 1-1/4" FIP x 1" Hydro-Core Double Ball Drain Valve Kit w/ (2) 1" IPS Union Connections

Includes (2) 1" IPS Union Connections To Identify which Hydro-Core Manifold is appropriate for your application, please check the Boiler Compatibility Chart under the "manuals" tab. Information you will need is Boiler Manufacturer, Boiler Model, System Run Size, & Desired Configuration. Note: This product is compatible with the following boilers: Bosch GreenStar 57 ZBR16-3 Bosch GreenStar 79 ZBR21-3 Bosch GreenStar 100 ZBR28-3 Bosch GreenStar 131 ZBR35-3 Bosch GreenStar 151 ZBR42-3 Bosch GreenStar Combi 100 ZWB28-3 Bosch GreenStar Combi 131 ZWB35-3 Bosch GreenStar Combi 151 ZWB42-3 Burnham K2-080 Burnham K2-100 Burnham K2-120 Burnham K2-150 Burnham K2-180 Triangle Tube Prestige Solo 110 Triangle Tube Prestige Solo PTE 110