this is a mounting kit only

What is included in the complete linkage kit

The Nor East Controls 30048312-322 Seat Nut is a critical mounting component engineered to secure the seat ring within flanged control valve assemblies

but the precise actual dimensions are 15-7/8" x 24-1/4" x 3"

the 920916A is the direct updated replacement for the older 920916 model

Maxitrol MR212D-2-1212 Valve THPU32HP7Y this is a mounting kitThe Maxitrol MR212D 2 1212 is a high performance 1 1 2" NPT modulating gas valve and regulator specifically engineered for direct fired (negative pressure) burners. As a critical component of the Selectra Series electronic gas flame modulating system, this valve eliminates the mechanical lag associated with motor driven butterfly valves, providing instantaneous response and non fluctuating temperature regulation. It is designed to handle a maximum