Campbell mass3t 3/4 Inch Stainless Steel Insert Adapter

Product Description

The CAMPBELL mass3t is a 3/4-inch stainless steel insert adapter configured with an insert connection on one end and a male NPT thread on the other. This transition fitting is built to join flexible polyethylene (PE) or polybutylene (PB) tubing to standard threaded metal piping. The one-piece stainless steel construction resists corrosion in wet and outdoor environments, making it suitable for applications where durability matters. Licensed plumbers and irrigation technicians install this fitting as part of cold water distribution, well pump, and irrigation assemblies. At 2.45 inches in height and 1.1 inches in width, it fits within tight plumbing configurations without difficulty.

This adapter is commonly specified in residential and light commercial plumbing systems where PE or PB supply lines must terminate at a threaded metal valve, pressure tank, pump outlet, or distribution manifold. It is well-suited for well pump installations, underground irrigation laterals, and potable cold water lines where a secure mechanical transition between flexible tubing and rigid threaded fittings is required. Both the insert and male NPT ends accept standard 3/4-inch connections.

Key Features

• Stainless steel construction provides corrosion resistance in wet, buried, and outdoor service conditions
• Insert x Male NPT end configuration enables transition from flexible PE or PB tubing to threaded metal pipe
• 3/4-inch size on both Side A and Side B for consistent line sizing throughout the connection
• Compact profile at 2.45 inches in height suits confined installation spaces
• Weighs 0.18 pounds for easy handling during field installation

Compatibility

Designed as an OEM-style replacement and standard-service fitting for 3/4-inch PE or PB flexible tubing systems connecting to male NPT-threaded metal components in residential and commercial plumbing applications.

Installation Notes

Installation is performed by a licensed plumber or qualified irrigation technician. Shut off the water supply and depressurize the line before making or breaking any fitting connection. The insert end requires a compatible barbed or insert-style clamp or crimp ring to secure the flexible tubing; follow applicable IPC or local plumbing code requirements for approved joining methods. Do not overtighten the male NPT thread into the receiving female fitting, as stainless steel threads can gall if forced.