PT Coupling's STA LOK® II 4 in. Coupler x Male NPT is constructed from aluminum and designed for use with liquids. Specifications Size: 4 in. Coupler Size: 4 in. Thread: 4 in. MNPT Cam Arms: 316 Stainless Steel O.D. w/ Cam Arms Extended (A): 10.66 in. (271 mm.) Outside Diameter (B): 6.56 in. (167 mm.) Outside Diameter (C): 4 in. (102 mm.) Outside Diameter (D): 2.34 in. (59 mm.) Outside Diameter (E): 3.6 in. (91 mm.) Made in the USA Downloads Safety Instructions - Recommended Materials (PDF Download) Recommended Operating Conditions (PDF Download) PT Coupling Warranty Information (PDF Download)
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