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Bob DavisPlease allow me to introduce myself. I am Bob Davis and I have invented a product that makes frost free hydrant installation safe, simple, fast and economical. The Davis UHB is a patented, 100% US Made, two part snap together device, held securely in place by three hose clamps, that creates proper drainage of frost free hydrants, protects the lower drain valve assembly and eliminates the need to bed the hydrant in gravel, eliminating the need to put a man in the trench.

On new installation, using flexible water line, the Davis UHB can be installed above ground and lowered into the trench eliminating the need to expose the installer to a potential of a trench collapse. This product can save lives!!

Extremely tough (made from recycled surgical grade polypropylene) and light weight (1 lb). Universally fitting on all standard manufactured frost free hydrants.

There is an installation/instruction video on my website at I look forward to answering any and all questions you may have.

Best Regards,
-Robert Davis

We're Green!

Davis UHB is made from green materials, recycled surgical grade polypropylene which will never rust or collapse. It is developed to withstand many different soils and conditions. Attach the Davis UHB to any standard frost free hydrant water lines, the connection is now protected from sediment while allowing quick and efficient drainage without contamination from rusts or other chemicals. The Davis UHB leach ability is equal to approximately 9 feet squared of washed gravel, 6 inches deep.

Inline T hydrant or 90

Provide a safe enclosure around the bottom valve assembly for water hydrants.

  • Lightweight 1 lb
  • Extremely tough recycled surgical grade polyproylene
  • Universal fit on all standard 1" inside diameter manufactured frost free hydrants
  • Install above ground and lower into trench – no need to put a human into danger of trench collapse!
  • Protects lower drain assembly
  • Create proper drainage of frost free hydrants
  • No need to bed hydrant in gravel