Thanks, but I think you answered a question I didn't ask or I just don't understand the answerFestitaMakool said:Peter_C said:Does it allow the D36 end you currently have to plug into the dust collector end you just purchased? Confirmation would be very much appreciated.mikeyr said:I bought this one and it fits perfectly my anti-static 36mm hose
https://smile.amazon.com/gp/product/B079S29X67/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
[member=50292]Peter_C[/member]
I got curious by your question, I happened to have this end as spare (haven’t exchanged it on the hose) - and it fits over the inner tube. I guess the 27mm end fits on the inside of the inner tube. Therefore I do think that the old 36mm end without these inner recessed tabs also fits the new vac ends.

I have the new style D36 end with the locking tabs on it. I want an end fitting for the dust collector that can attach to the D36 end so I can put two hoses together for added length. My new style hose can not perform this function.
Do you have a quick photo to visually explain what you are calling the "inner tube" please? Is this a second "level" inside the dust collector fitting that allows the D36 hose to plug into? Does the D36 tool end fitting go inside our outside this "inner tube"? Reads like outside and the D27 tool end fitting goes inside.