Restore like-new performance to your fixture with this thermostatic cartridge — 1/2 Cartridge V-2254.97.5Z Thermostatic Cartridge. For your fixture. Designed as an OEM-style replacement for your fixture's original manufacturer, it's precision-engineered for an exact fit and long service life, installing cleanly with no modifications to bring back smooth, reliable operation. This is a 1/2 not 3/4 Brass thermostatic cartridge 15640 Graff 3 7_8inch 24pt skinny 30mm V-2254.97.5Z Graff Genertic