The ZORO SELECT - 600U111SW010 is a stainless steel pipe union designed to join two 1-inch pipe ends with a socket weld connection, allowing for connection or disconnection without rotating the pipes. Constructed from 316 stainless steel, it is listed for use with: air, natural gas, non-potable water, oil, potable water, steam. The union is rated Class 150 for pressure, conforming to ASTM-A-351 material standards and ANSI B16.5 dimensional standards, and meets MSS-SP-51 requirements for Class 150LB general dimensions, pressure, and temperature ratings. Key Features: - Material: 316 stainless steel for corrosion resistance - Connection type: Socket weld on both female ends - Nominal pipe size: 1 inch on both sides - Pressure rating: Class 150 - three-piece construction with body, nut, and mating seat - Hex size: 52.5 mm for wrench application - Compliant with low lead requirements for potable water systems - Overall length: 52.32 mm - No pre-applied thread sealant or included seal