Model "D" SALES B KIT FOR PRODUCT CODE: 2D6-3B47-13M00000A; Pressure Reducing Regulator,Tfe Gaskets (Opt-45); 1" Size; Bronze Body & Spring Chamber; B4 Trim: Brass With Tfe Seat,Fluorocarbon Elastomer Diaphragm; Special Clean Per Cashco Spec #S-1134 (Opt-55)