MODEL #10030 PORCELAIN SOCKET EXTENDER MEDIUM BASE TO MEDIUM BASE MODEL #M DID-SKT-STR SOCKET STRING ADAPTER MEDIUM TO IDEAL = MODEL #17204 PORCELAIN SOCKET STRING MEDIUM TO MEDIUM BASE MODEL #MOUNTING CLIP SLIDES ON EDGE OF HOUSING TO CREATE A CATCH FOR TORSION SPRINGS (2 PER PACK) Few : MODEL #17201 Z = COIL SPRINGS FOR 4-INCH TRIMS {4-INCH HOUSINGS ONLY) Fo A, MODEL #17203 REPLACEMENT HANGER BAR {NEW CONSTRUCTION HOUSINGS ONLY} MODEL # 17202 TORSION SPRINGS {5 & 6-INCH HOUSINGS ONLY} MODEL #IDNMX-5KT-STR