Plastic Sleeve fits 2.25  in. ID with OD at 2.37. receives a 2 in tube Plastic Sleeve fits 2.25 in. ID with OD at 2.37. receives a 2 in tube  Ref: 178x178
Plastic PVC Sleeve, Plastic Sleeve 2.165 x 2.165 ID; 2.36 x 2.36 in OD, will receive 1.77 tube.
Ths plastic sleeve fits into 2.165 x 2.165 inche steel tube. It will receive a 1.77 tube. ( Minmum Order of $10 applies.) ( Volume Pricing is available on orders of 100 and more )