Glossary of Terms

  • KDF® Media – Atomized Copper and Zinc, also called Redox Media, used to remove chlorine from your water. (See Learn More Section on website) (For what KDF® actually stands for ask Uncle George (800) 243-8775)
  • Crystalline Quartz – Virgin American Crystal used to “energize” the water. Generates “good” negative ions.
  • Housing – The outside of the filter unit that holds the cartridge.
  • Filter Cartridge – The container that holds the filter media.
  • Non-Cartridge Type – Shower filter that is one whole unit. Does not have a replaceable cartridge.
  • Red Plug – Plug placed in the inlet of the filter to prevent thread damage. Remove before Installing.
  • Shower Arm – Water piping which comes out of your shower wall.
  • Wonder Washer – Specially designed rubber washer and brass sleeve found in the inlet of the housing, which prevents washer collapse and better water seal.
  • O-Rings – Rubber rings found inside and outside the filter housings, which acts as gaskets.
  • Shower Head – Device attached to the outlet used to deliver water, does not filter water
  • Free Available Chlorine (Cl2) – The most commonly found type of chlorine in municipal water supplies.
  • Chloramines – The combination of chlorine and ammonia found in some water supplies (NH2Cl).
  • Pre-Filter – Sediment filter that removes particulates from water before entering the garden filters.
  • Throttle Valve – device used to turn water off & on with a safety drip to avoid back pressure.


421 S. California Street, Unit D

San Gabriel, CA 91776


P.O. Box 2167

San Gabriel, CA 91778-2167


Toll Free: (800) 243-8775

Phone: (626) 292-3855

Fax: (626) 292-1454

For Shipping and Orders:



For new dealer inquires, product questions, and general information:



Office Manager:


© Copyright 2017, Rainshow'r Mfg., Inc.