Q. "What does pressure balanced mean?"
A. A pressure balanced valve provides constant water pressure to a shower to prevent fluctuations in water temperature.
Q. "What happens if I want to use the 940-097A handle but my cartridge is older than 1997?"
A. Per the manufacturer, if you have a 974-292 or 974-042 cartridge and it is older than 1997 (many have dates stamped on them), the cartridge will need to be replaced in order for the 940-097A handle to fit. The older than 1997 cartridges had a smaller stem diameter and the 940-097A handle will not fit them.
Q. "I have a parts diagram that says my pre 1997 08 Series tub faucet should use the 974-491 cartridge and the 971-150 stem bonnet assembly but these part numbers are not listed on your site. Will the 974-042 cartridge work in my tub faucet?"
A. Per the manufacturer, the 974-042 combined cartridge and stem bonnet assembly (one-piece) is for 08 Series tub and/or shower faucets manufactured AFTER 2004. The original 974-491 cartridge was replaced by the 974-291 balancing cartridge assembly and the original 971-150 stem bonnet assembly was replaced by the 971-250 complete valve stem assembly. The 974-291 balancing cartridge and the 971-250 stem bonnet assembly are the replacement parts to be used in all of the 08 Series tub and/or shower faucets manufactured up until 2004.
Q. "How do I know what cartridge to use if I don't know which year my faucet was manufactured?"
A. The only sure way to know is to shut off your water and remove your stem assembly and cartridge from the shower faucet and then compare your cartridge with the pictures shown by clicking on the underlined part numbers. You will then need to order the parts that best match the parts you have.
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