Thank you for your question, Vince! The screw driver stops allow you to shut the water off at the valve during installation or repairs. Models without the "WS" suffix do no have these stops, so the supply would need to be shut off elsewhere in the home. Best regards, Jon
Hi, meb! Thank you for your question. The R22000-WS rough valve will work with the T27859 valve trim. Best Regards, Rosanna
Hi, Bruce! Thank you for your question. This valve body works with our T27 series Integrated shower valve and diverter trims. These trim kits are sold separately. Best Regards, Rosanna
Dear Jammincoot, Thank you for your question. The Delta MultiChoice Universal Rough-In Valve with diverter R22000-WS flow rate at 80 PSI is between 5.6 gpm and 7.4 gpm depending on the series of trim/cartridge used. https://media.deltafaucet.com/SpecSheet/DSP-B-R22000%20Rev%20B.pdf Best regards, Tanya