Check the listing for details. 3/8" OD HVAC Copper Coupling with Rolled Stop, W01009 / C165-0002 , Pack of (5). Condition: New. Listed at 1.95 USD. INCLUDES5x 3/8" OD Copper Coupling w/ Rolled Stop Ideal for potable water, air conditioning and refrigeration. Coupling: rolled tube stop. The lead-free wrought copper rolled tube stop coupling for ease of use is used in residential and commercial systems such as potable water, air conditioning and refrigeration. In addition to its inherent qualities of beauty, durability and low maintenance, copper's reusability makes it an ideal application in sustainable projects.Wrot copper solder joint pressure fittings are produced to 1 of the following specifications: material and workmanship ASME/ANSI B16.22; dimensional, material, and workmanship of MSS SP-104 or MSS SP-109; certified to NSF/ANSI 61Dezincification resistantThird party certified to Annex G of NSF/ANSI 61 (180°F commercial hot)Complies with Section 116875 of the California Health and Safety Code and Vermont Act 193Lead free refers to the wetted surface of pipe, fittings and fixtures in potable water systems that have a weighted average lead content =0.25%; source: California Health and Safety Code (116875); Vermont Act 193Wrot Fittings ASME B16.22-2018