1900 CAT BK310P24 24" HEAVY DUTY BUCKET FOR A 450F BACKHOE AND 310 EXCAVATOR(QUICK COUPLER PICTURED NOT INCLUDED IN PRICING)BUCKET-HD, 24", 9.5 FT3 **FITS THE 450F BHL AND 310 HEX**CALL FOR MORE DETAILS! , **FITS THE 450F BHL AND 310 HEX*, BUCKET-HD, 24", 9.5 FT3, Online Owner's Manual ,