@alleycatkate Hey Kate, when my journey started 2 plus years ago, I got my doc to write a Rx for a Sunset compresser and used the handset it came with. Then I heard someone say the Pari handpiece delivers better because its breath actuated (little flap that closes after each puff, thus less waste of med), plus, had a faster delivery time (about 10 min compared to 20). I bought this myself, no script, thru Just Nebulizers, for about $14 including new tubing. Got a handy little face mask too for times when my sinuses arent feeling well. Recently bought another Sunset compresser (about $35) as the 1st one was losing its "umph". Tubing was interchangeable, which answers your question. I remember doing the research on droplet size (smaller is better) and the Pari was a good one. As an FWI to anyone nebbing the Arikayce, I use that system (compresser and handpiece) to neb my 7% saline and it takes all of 2 minutes. That system is actually made by Pari. I called them, told them what I was doing and they said that's the normal time of delivery for saline .It is harsh, wouldnt recomend it for all, but I've had zero problems w saline. They also recomended I wipe the plug- in to the mouthpiece really well as the saline is so sticky.
Sorry for the lengthy response, it seems one thing relates to another and I'm off to the races! Kinda appropos, as I'm originally from Louisville Kentucky and the running of The Kentucky Derby was cancelled due to Covid!