Mfg.,Part No.,Desc.,Units,Front Insert Len,Front Insert OD,Front OD,Length,Rear OD,Core Dia.,Rear Insert Len,Rear Insert OD,Thickness,Config,Material,CG Loc,Mass Units,Mass,Shape,Shape,Shape,Shape,Shape,Shape,Shape,Shape,Shape,Shape,Shape,Shape Quest,2520,Ribbed Plastic Reducer 25mm/20mm,in,0.75,0.944,0.984,0.5,0.788,0,0.75,0.752,0.125,hollow,Polystyrene PS,0,oz,0.2,cone,,,,,,,,,,, Quest,2520 -R,Ribbed Plastic Reducer 20mm/25mm -Rev,in,0.75,0.752,0.788,0.5,0.984,0,0.75,0.944,0.125,hollow,Polystyrene PS,0,oz,0.2,cone,,,,,,,,,,, Quest,3025,Ribbed Plastic Reducer 30mm/25mm ,in,0.75,1.141,1.181,0.5,0.984,0,0.75,0.944,0.125,hollow,Polystyrene PS,0,oz,0.25,cone,,,,,,,,,,, Quest,3025 -R,Ribbed Plastic Reducer 25mm/30mm -Rev,in,0.75,0.94,0.984,0.5,1.181,0,0.75,1.141,0.125,hollow,Polystyrene PS,0,oz,0.25,cone,,,,,,,,,,, Quest,3525,Ribbed Plastic Reducer 35mm/25mm ,in,0.5,1.34,1.38,0.75,0.984,0,0.375,0.944,0.125,hollow,Polystyrene PS,0,oz,0.25,cone,,,,,,,,,,, Quest,3525 -R,Ribbed Plastic Reducer 25mm/35mm -Rev,in,0.375,0.94,0.984,0.75,1.38,0,0.5,1.34,0.125,hollow,Polystyrene PS,0,oz,0.25,cone,,,,,,,,,,, Quest,3530,Ribbed Plastic Reducer 35mm/30mm ,in,0.5,1.34,1.38,0.75,1.181,0,0.375,1.14,0.125,hollow,Polystyrene PS,0,oz,0.25,cone,,,,,,,,,,, Quest,3530 -R,Ribbed Plastic Reducer 30mm/35mm -Rev ,in,0.375,1.141,1.181,0.75,1.38,0,0.5,1.34,0.125,hollow,Polystyrene PS,0,oz,0.25,cone,,,,,,,,,,,