I chose the dryer for the 40 mm pole to fit the holder from the old one and for the arm dimensions due to space. So far, satisfied; you just need to tighten the lines and adjust to your needs. The cover is an advantage, I’ll use it in winter. I recommend it.
Perfect. I have the faucet in the basement and the flexible spout is great because in a tight space I can aim it where needed. I also screwed a cheap adapter with a standard quick connector for a garden hose onto the flexible spout, rated for hot water up to 60°C. This way I fill or top up hot water into the hot tub, max 40°C. The sun takes care of further heating.