I want to refurbish a gunite spa that came with a house I bought. It has 4 jets, most missing parts. I took one out and its part number is 215-6010, looks like a eyeball type. There is another, spinner type 210-070 on your site. Can I use them instead, and what is the difference performance wise? Regarding Waterway Jet Part Wall Fitting Poly 215-1070, is this the part in the wall? Can it be removed, or it that PVC glued in? I see it called "old style" on some sites. My spa was built in 1999, so I'm assuming it's the old style. Really I am wondering if I need to replace them, or just the jets. Thanks for any help with this. I will buy from you. I gave a link to a few pictures for reference. photos:
https://imgur.com/a/CEuZYQS