This Sunrise Specialty straight stop (shut-off) valve is 5/8'' Copper x 1/2'' O.D. and comes with a flange. These stops fit SUNRISE SPECIALTY S55 Double Offset, S56 Straight Lines for Deck Mounted Faucets or S57 Bent Lines for Deck Mounted Faucets. PLEASE NOTE: These valves are sold singly - you will need to order two (2) of these valves to fit a set of Sunrise supply lines. ROUGH-IN INSTRUCTIONS: Rough 1/2'' copper IPS 1'' to 1 1/2'' above finished floor.