COMPLETE FLEXIBILITY: The R4700-FL rough can be paired with any Delta freestanding bathtub faucet, so you can easily upgrade or change your bath faucet later without ripping out expensive flooring INSTALLATION: Designed to fit single-hole, floor-mount installation with Delta freestanding tub fillers (sold separately). Everything you need is together in one box, including test caps and plasterguard DURABLE MATERIAL: Machined brass body with stainless steel mounting plate DECK THICKNESS: Can be installed on surfaces (including concrete) up to 2.5 inches