Product sold for 1-1/2 in. square tubing. My hose is 1-1/2" 11 ga. 1-1/4" ID. I had to cut off the small retaining ribs on the part that fits into the tube and holds it there. I used my belt sander to remove about 1/16 inch from these ribs and they are well set in and appear solid. Satisfied with the product - reasonable price.