MODEL SH5000 "SELECT-A-FLO Heavy Duty Shower Head" MODEL SH5001 "SELECT-A-FLO Heavy Duty Theft-Resistant Shower Head" Designed for todays' needs!! economy! conservation! durability! satisfaction! The select-a-flo shower head utilizes fluid dynamics to provide satisfying, effective showers under all conditions, even the top floor of high rise buildings. Twisting the outer sleeve gives fingertip control to meet individual preferences. The Delany SELECT-A-FLO shower head was developed at Virginia Tech to provide housing management with the lowest overall costs over the years. The SELECT-A-FLO shower head also saves on water and sewage costs. Also the long life design means no maintenance and will save on operating cost.