Hi there. My family owns a 25-year old spa/hot tub that needs new control knobs for the air venturis.
Finding replacement parts proved impossible, so I designed new knobs and got them working after a few prototypes.

So the environment will be continually wet (but not submerged) and hot (water is kept at 100 F).
Can I get away with using PETG, or should I use ABS?
Thanks!