Eff 104066-lf 3/4 Inch Pex X 3/4 Inch Mpt No Lead Brass Male Adapter

Product Description

The EFF 104066-lf is a 3/4 inch PEX x 3/4 inch MPT no lead brass male adapter designed for use in residential and commercial plumbing systems. This fitting connects PEX tubing directly to a male pipe thread, making it a practical choice for plumbers and contractors who need a reliable transition between flexible PEX supply lines and threaded pipe connections. The adapter is manufactured from lead-free brass, meeting no lead compliance requirements for potable water systems as defined by current plumbing codes and standards. Lead-free fittings are required in most states for any installation that involves drinking water, hot water, or cold water supply lines. This fitting meets those requirements and is suitable for use in kitchens, bathrooms, mechanical rooms, and any area where PEX pipe connects to threaded fixtures or valves. The 104066-lf uses a standard 3/4 inch PEX connection on one end, which is compatible with crimp ring, clamp ring, or expansion-style PEX installation methods depending on the tool and system being used. The opposite end features a 3/4 inch male pipe thread, which threads directly into female-threaded fittings, valves, water heaters, manifolds, or other threaded connections. Brass construction provides strength and corrosion resistance, holding up well in both hot and cold water applications. The compact design makes installation straightforward even in tight spaces. This part is also cross-referenced as U4066-LF, 5423-024, EPMA3434-NL, and PXMA0404LF, making it easy to match with existing specifications or purchasing records. Plumbing contractors, service technicians, and wholesale supply buyers will find this adapter useful for new construction and retrofit work alike.

• 3/4 inch PEX inlet connects to standard PEX tubing using crimp, clamp, or expansion methods
• 3/4 inch MPT outlet threads into female-threaded valves, fixtures, and pipe connections
• Lead-free brass construction meets no lead compliance requirements for potable water systems

Product Highlights

The EFF 104066-lf is a no lead brass male adapter that provides a direct, code-compliant connection between 3/4 inch PEX tubing and 3/4 inch male pipe threads, suited for a wide range of residential and commercial plumbing applications.

Product Information

Standard Information

• Brand: EFF
• Manufacturer Part Number: 104066-lf

Technical Specifications

• Connection Size 1: 3/4 inch
• Connection Size 2: 3/4 inch
• Connection Type 1: PEX
• Connection Type 2: MPT
• Connection Type: PEX x MPT
• Fitting Type: Adapter
• Material Construction: Brass
• Material: Brass
• Lead Free: Yes