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PASCO 4859 is a 3 inch diameter fill test drain cap made from durable synthetic rubber, designed for use with tubing. It features an integral pipe nipple, specifically a 3/4 inch MPT x 1/2 inch FPT connection, molded directly into the cap. This single-size test cap is used for filling, testing, or draining lines in various plumbing applications.
Versatile synthetic rubber test cap with integrated nipple for efficient line testing and draining.
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