105-431NL (Legend) | 4 Inch | T-450NL No Lead Cast Bronze In-Line Check Valve

The 4 Inch T-450NL no Lead Cast Bronze In-Line Check Valve Features Female Thread End Configuration. Its Durable, Heavy-Wall Cast Bronze Design is Ideal For Water Well Applications. The Spring-Loaded Stem-Disc And Elastomer O-Ring Seal Have a Silent Closure Design. The 1/2-pound Cracking Pressure is Ideal For All Types of Well Pumps. Fully-Guided Stem Minimizes Over-Travel, Reducing The Chance of Piston Failure | Legend | 105-431NL