RP19804 cartridge for Delta 1300 & 1400 series tub / shower valves (fits select Monitor valve before 2007, doesn't fit the MultiChoice Universal Valves (2007~ present). Make sure your Delta shower rough-in style, and choose the correct cartridge.For use in Delta Monitor 1300 & 1400 single-handle tub / shower trim kits, single-function only temperature control with pressure balance.This RP19804 shower cartridge with pressure balance design keeps the water temperature within a safe +/- 3.6 F ( +/- 2 C), helps to protect you from sudden changes in hot or cold water pressure.Easy to limit the maximum flow of hot water to prevent overheating. Manufactured with a quality, durable plastic constructions provides strength and reliability.Colour: white + blueMaterial: plasticPackage Contents:2 x Valve CartridgeOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.