Adler single metal handle lavatory faucet with 50/50 pop-up. 1.2 GPM (gallons per minute) flow rate. Solid brass construction, brass waterways, washerless cartridge. 4" centerset, 1/2" I.P.S. connectors. For replacement cartridge see Model No 1255 (SKU 464438). ADA, CSA, and NSF certified. Chrome finish. No. WS84503: Finish: Chrome, Number Of Handles: 1-Handle, Handle Type: Lever, ADA Compliant: Yes, Faucet Centers: 4 In., Faucet Type: Centerset, Faucet Holes: 3 Hole, Flow Rate: 1.2 GPM, Valve Type: Washerless, Manufacturer Warranty: Lifetime, Pkg Qty: 1, Package Type: Box