I don't know about all of them but the stomach one isn't true. Acid doesn't eat through because there is an enzyme that activates the acid when food is eaten and the acid remains dormant when no food is present
The Neo Arm and Flange S-2540 features an elegant, circular design that beautifully compliments our Neo Shower Head S-3010. The shower arm measure 7-inches in length and is constructed of durable, solid brass. Available in either a Polished Chrome or Brushed Nickel finish.
The fundamental purpose of a shower is to get clean. To step in and wash away the events of your day – both literally and figuratively. But the water we experience can often contain chlorine, iron and dirt, which adversely affects the health of your hair and skin. Our Hotel Pure Shower Head features an internal filtering system that can remove up to 99% of chlorine. And with 58 intense, adjustable streams – the Hotel Pure will deliver a powerfully clean experience.