Comparison : Item # DREFL-04X0300, Model "DREFL" Series Steel Welding Double Reducing Plate Flanges
Item # DREFL-04X0350, Model "DREFL" Series Steel Welding Double Reducing Plate Flanges
Item # DREFL-06X0400, Model "DREFL" Series Steel Welding Double Reducing Plate Flanges
Item # DREFL-06X0450, Model "DREFL" Series Steel Welding Double Reducing Plate Flanges
Item # DREFL-08X0500, Model "DREFL" Series Steel Welding Double Reducing Plate Flanges