Olive, we installed the ETL 26781 (white). Although the head assembly is large and ungainly, designed with an odd arc, and the hose is only marginally more flexible than a length of PVC pipe, it is light weight and does not strain the shower wall it is attached to. Supplied screws must be used. The supplied dble back tape is not sufficient.
Ours was a gift from our grand daughters (8 & 6) who like to go "glamping" with us when on school breaks. Returned the the first, then returned the second. Gave up and kept the third. Our experience has been that its' performance does not live up to its' price or advertising hype. Even tried them (all three) in our home. Now we only use it when the girls are with us. (because -- gift
We prefer the performance of our Wheadon USB4C 1.5 GPM Ultra Saver. About 6oz of chrome or nickle plated brass. About $5 at Walmart, $10 on Amazon.
Fair Winds and Following Seas