1. Compatible with 1 or 3-Hole installation, the deck plate/escutcheon is detachable. 2.Easy Operation: Single lever design for effortless flow and temperature control. 3. Simple, elegant lines complement traditional decor. 4. Everything you need is together in one convenient box(Cartridge, valve,1 Pair hose, deck plate, installation hardware and so on). 5. Solid brass construction ensures quality and reliability. 6.Material: Low Lead Brass ensuring quality and longevity, lead percentage less than 0.25%, comply with NSF61 and NSF372 7. The faucet was specially designed to fit the sink with a hole diameter of 1"-1.8" 8. An optional deck plate is included for 3-hole installation. 9. Sonterra's classic styling goes a step further with a new finish combination---(6556D) 10. Hose Size:24" Length Faucet Connector, Braided Stainless Steel - 3/8" Female Compression Thread x 1/2" I.P. Female Straight Thread