Pfister LG42LPMC Arkitek Single Control 4 Inch Centerset Bathroom Faucet in Polished Chrome, Water-Efficient Model 1-Hole installation Push & seal drain requires no tools and installs in less than half the time of a standard pop-up drain, guaranteed tight seal each and every use - simply Press to seal and again to open Includes valve and cartridge Includes single post mounting ring Pforever sealadvanced ceramic disc valve technology with a never leak guarantee