RichardG
If at first you don’t succeed have a cup of tea.
I have some grey dust extraction hose which is more rigid and doesn't stretch/compress much. The last lot I bought was from Axminster and it was described as "General Purpose 100mm x 3m Grey Dust Extraction Hose" and cost £16 inc. two hose clamps in 2019. This is really tough and is good for my DX4000 extractor as it deals with high vacuum. I need another meter or two and can no longer find any. I can find semi rigid hose at £££ but this grey stuff was always cheaper than the clear hose. Any suggestions?