Head Cartridge

need help locating and American Standard Shower Cartridge?

need help locating and American Standard Shower Cartridge?
The website and customer service are useless for the manufacturer and I have not been able to find the part locally or online. It is a shower/tub cartridge for a single white porcelain handle manufactured between 1995 to 1998 fastened with 4 philips head screws. There are also 4 outlet holes, the cartridge is a gray plastic/ceramic with the word "down" signifying the direction to install it. No model # or serial # to be found.

contact a local plumbing supply house they will order it for you. or dinapoli. com if you go thru a local plumbing supply bring the old cartridge with you>