Nipple Fitting; Type Dielectric; Applicable Standard NSF/FDA, IAPMO/UPC, SBCCI PST, ESI; Size A 4"; Size B 4"; Overall Length 6"; Schedule 40 S; End Connection Grooved x Threaded; Material Steel; Material Specification ASTM A53; Process Galvanized; Finish Zinc Electroplated; Pressure Rating 300 PSI; Temperature Rating 225 Deg F; Application HVAC, Potable Water, Plumbing System; Weight 4.5 Lb