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Mueller Streamline W 01321 is a 90-degree copper reducer solder-joint fitting for piping systems with 3/4 inch by 1/2 inch outside dimensions and 5/8 inch x 3/8 inch inner diameters. Constructed from UNS C12200 copper alloy to ASTM B75/B88/B280, it is available in 0.026 inch or 0.031 inch wall thicknesses, rated 700 PSI at 250 F, and meets applicable ASME, NSF 61G, and UL standards.
90-degree copper reducer fitting, 3/4" x 1/2" OD (5/8" x 3/8" ID), UNS C12200, 700 PSI at 250 F, meets ASME/NSF/UL
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