Dewalt Airlock Extractor part

This is a replacement Dewalt dust collector nozzle adaptor, that works with the Dewalt airlock system.I use this extractor almost every day and these adaptors are so easy to lose, I thought it was ridiculous that the official or off-brand part is £15 + so I redesigned my own and now it's here for an affordable price.Nozzle size - Tapered 32mm-31mm