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Brass CPVC transition adapter with threaded male end

Proline

Proline 164-305NL 1" MIP CPVC Transition Adapter

SKU CH-6MBY-EBKF8

Connects 1" CPVC pipe to brass male threads, rated to 200 psi and meeting NSF/ANSI 61 and AB1953 standards

  • CPVC-to-brass transition simplifies mixed-material plumbing
  • 200 psi rating handles demanding pressure requirements
  • Lead-free brass meets AB1953 and NSF/ANSI 61 compliance
  • UL, FM, CSA and ANSI certifications confirm code acceptance
  • 1 in socket CTS fits standard copper-tube-size piping

Proline 1" CPVC Brass Adapter

This Proline adapter joins 1-inch CPVC pipe to a male NPT brass fitting for hot and cold water lines. It meets ANSI B1201, NSF/ANSI 61 and CSA standards for potable water use. The fitting carries a 200 psi maximum pressure rating and complies with AB1953 lead-free requirements. Contractors and maintenance teams use it for residential and light commercial plumbing upgrades.

Socket CTS to MNPT Installation

The socket end solvent-welds to CPVC tubing while the male threads engage brass or steel components. Clean and deburr the pipe before applying CPVC-specific cement to prevent leaks at the joint. Over-tightening the threaded connection can stress the plastic body and cause cracking. Ensure the system is depressurised and cool before making the final connection.

Verify Pipe Size and Code Compliance

Confirm the existing line is 1-inch CTS CPVC and that the mating fitting uses male NPT threads. Local codes may require inspection or specific solvent cement brands for this transition type. The adapter is approved for potable water under NSF/ANSI 61 and UPC listings. Check that the 200 psi rating matches or exceeds the system design pressure before ordering.

Highlights

  • CPVC-to-brass transition simplifies mixed-material plumbing
  • 200 psi rating handles demanding pressure requirements
  • Lead-free brass meets AB1953 and NSF/ANSI 61 compliance
  • UL, FM, CSA and ANSI certifications confirm code acceptance
  • 1 in socket CTS fits standard copper-tube-size piping

Specifications

BrandZORO SELECT

Questions about this item

How can I confirm the 164-305NL adapter is working correctly after installation?

Pressurise the system up to 200 psi and inspect the CTS socket and MNPT brass threads for leaks; a dry joint under pressure shows the fitting meets the listed ANSI B1201 and CSA standards.

What comes with the 164-305NL adapter and what must I supply myself?

The box contains the CPVC-to-brass transition adapter only; you must provide CPVC pipe, primer, solvent cement, and thread sealant or tape for the MNPT connection.

Which version of the 164-305NL should I choose for potable water service?

Select this 1 in CTS x MNPT model; it carries NSF/ANSI 61 and AB1953 compliance for lead-free potable water use.

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