The B&K Valves Are Precisely Engineered For Outstanding Service, Long Life And Reliable Performance. These Valves Offer Easy Operation, Superior Flow And Include A Wide Range Of Water Valves Constructed From Forged Brass Materials. Valves Are Arranged In Series Reflecting The Valve'S Performance Characteristics, Connection Types And Handle Style. B&K Valves Are Created To Meet Upc And Icc Plumbing Code Requirements And Are Certified To Meet Nsf 61.