Vacuum cleaner corrugated hose internal thread straight connector, 32mm inner diameter, 40mm outer diameter, corrugated pipe threaded fitting

For vacuum cleaner hoses with a 32mm inner diameter and 40mm outer diameter that need an extension, this can be printed directly. My original vacuum cleaner hose was not long enough, so I added this extension. It's more stable than standard connections, and the reverse internal thread connection is very effective. The tolerance fit is excellent. I've tested it myself, and it works, providing a tight connection. If you find it useful, please give it a boost! Thank you. I recommend using PETG; I printed it with 6 walls, and it's very sturdy.