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John Guest

John Guest Brass Male Connector NPT - 1/2 CTS x 1/2 NPT

Part Number: MWI012024
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The John Guest brass male coupler makes connecting Copper, PEX, or CPVC to female NPT threads easy. Push-fit connection securely grips pipe. Fast and easy to use - no soldering, glue or clamps. Approved for behind-the-wall applications and can be used for permanent installations. Ideal for work in tight spaces. Can be disconnected without damage to tubing.


  • For use with Copper, PEX, and CPVC  
  • No soldering, glue or clamps  
  • Can be installed on wet lines.  
  • Approved for behind-the-wall applications with no access panel  
  • Can be disconnected as needed

Working pressure and temperature: 

  • Max. 160 psi at 73° F
  • Max. 100 psi at 180° F
  • Max. 80 psi at 200° F

California residents Prop 65 Warning
This product contains materials known to the State of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov