2" ProPress x 2" MNPT Union (Lead-Free Brass)

SKU: P-WAT-2947
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$150.99

The 2" ProPress x 2" MNPT Union, identified by Manufacturer Part Number (MPN) 79755, is a cutting-edge, lead-free brass fitting designed to revolutionize plumbing connections. This union facilitates a secure and efficient connection of copper tubes, with the added benefit of allowing for easy disconnection without requiring the tubes to be cut or damaged.


Crafted from zero-lead bronze (brass), this union is specifically designed for use with ASTM B88 and B75 copper tubing. It features a ProPress connection on one end and a Male NPT (MNPT) threaded connection on the other, offering versatile integration into various plumbing systems.


The core advantage of this fitting lies in its ProPress technology, which makes installation remarkably quick and efficient. Unlike traditional methods requiring calibration, flame, solder, or flux, Viega ProPress unions install in just four easy steps: cut the copper tube to length, remove any burrs, measure and mark the fitting insertion depth, and use a press tool for a secure connection. This process typically takes 7 seconds or less.


Key features of this union include Viega Smart Connect technology, which is a crucial safety and efficiency highlight; it helps installers easily identify unpressed connections during pressure testing, ensuring proper connections the first time and significantly reducing callbacks. The fitting incorporates durable internal EPDM rubber seals to guarantee watertight connections. It is highly robust, rated for 0-250°F and up to 300 PSI for water applications. Its lead-free solution is certified under NSF-61-383, making it suitable for potable water systems, hydronics, and other plumbing applications. Furthermore, the press technology eliminates the need for burn permits or fire watches, and its ability to create wet or dry connections allows for quick repairs on existing systems. This product is approved to the most codes and standards of any other press fitting system, including IPC, UPC, and NSF.

  • Product Type: ProPress Union
  • Manufacturer Part Number (MPN): 79755
  • Size: 2"
  • Connection Type: ProPress x Male NPT (MNPT)
  • Material: Lead-Free Bronze / Brass
  • Thread Type: Male (on one end)
  • Seal Material: EPDM Rubber
  • Pressure Rating: Up to 300 PSI (for water applications)
  • Temperature Range: 0°F to 250°F
  • Application: Plumbing, Potable Water, Hydronics
  • Compatibility: ASTM B88 and B75 copper tubing (Not compatible with PEX)
  • Compliance/Certifications: Lead-Free, NSF-61-383, IPC, UPC, NSF
  • Lead-Free Construction: Certified under NSF-61-383, safe for potable water applications.
  • ProPress Technology: Enables quick (7 seconds or less), flameless, solder-free connections.
  • Viega Smart Connect Technology: Helps identify unpressed connections during pressure testing, ensuring secure installations.
  • Easy Disconnection: Allows tubes to be disconnected without cutting or damage.
  • Durable EPDM Seals: Ensures reliable and watertight connections.
  • High Pressure & Temperature Rating: Rated for up to 300 PSI and 0-250°F.
  • Wet or Dry Connections: Facilitates quick repairs on existing systems, minimizing downtime.
  • Eliminates Hot Work: No need for burn permits, fire watches, or gas freezing.

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