1-1/2 OD 3/8-18 Plastic Round Threaded Insert
1-1/4 OD 5/16-18 Plastic Round Threaded Insert
"Glide, round inside fit 7/8 inch OD tubing"
"Glide, round inside 3/4 inch ID tubing"
"Glide, round inside 2 inch ID tubing"
"Glide, round W 19 degree angle 7/8 inch ID tubing"
