This is an upper or lower (not sure which) radiator hose section made of metal from a 1950's or 1960's Ford truck.  Not sure of the exact application but #1 is an "S" bend of 1 3/8" tube flared at the ends to fit 1 1/2" hose. Over all length is about 11" with offset about 4 1/2".  #4 is an "L" of 1 1/2" tubing with factory style clamps.  They can be reused but the screws will need to be cut and replaced.  Overall length is about 13 1/2".  Check these dimensions and pictures to confirm which will work for you and INDICATE YOUR CHOICE WHEN MAKING A PURCHASE.  Free shipping, usually same day.