They are interchangeable with all 1/2" body ISO 5675 series / Pioneer style couplers including ball seat valve, poppet seal, and 1/2" Body ISO 7241-A couplers. Body Size: 1/2" Body Thread Size: 1/2" NPT Thread, Poppet Valve What's Included:(As shown in the image)Installation instructions are not included Attention: 1. Professional installation is recommended. 2. We maintain high standards of excellence and strive for 100% customer satisfaction! 3. If you have any questions about quality, transportation or other issues, please contact me first.