A. O. Smith
American Standard
Acorn Engineering
Advanced Drainage Systems
Alsons
American Saw Mfg.& Co.
Amtro
AquaPure Water Treatement
Basco Corp.
Neyer Plumbing
Bootz Plumbing Fixtures
Bemis Mfg.
Black & Decker (DeWalt)
Bradford White Corporation
Bradley
Brass Craft
Bristolpipe
Brizo Faucets
Cerro Copper
Cherne Industries
Charlotte Pipe & Foundry
Chicago Faucet
Church Seat Company
Crane Plumbing
Danze Faucets
Delta Faucet
Elkay Mfg. Company
Elkhart Products
Eljer
Engineered Brass (EBC)
Fernco
Florestone Showers & Tubs
Fluidmaster Inc.
Ford Meter Box
Franke
Freedom Plastics
Geberit
General Wire Spring Pipe Cleaners
Gerber Faucets
Grohe
Grundfos
Hercules
Holdrite
Howell Metal Pipe and Tubing
In-sink-erator
IPS Corporation
Jacuzzi Whirlpool Bath
Jones Stephens Corp.
JR Smith
Just Mfg. Company
Keeney Mfg. Company
Kohler Company
Lasco Bathware
Lasco Fittings
Lochinvar Corporation
Mansfield Plumbing Products
Masco
Milwaukee Electric Tools
Moen
Mueller Company
Murdock Corp.
E.L. Mustee & Sons