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This MacValve straight connector from McAlpine is available in a range of sizes with the S31U straight 1 inch BSP male thread x 1 inch universal connection or the T31U straight 1 inch BSP male thread x 1 inch universal connection. Features & Benefits: McAlpine MacValve Straight Connector (BSP Male x Universal) - 1 1/2 inch, Straight connector, Range of sizes, BSP male thread, Universal connection. McAlpine MacValve Straight Connector (BSP Male x Universal) - 1 1/2 inch White Plastic Polypropylene T31U