Aqualine SCU-4-LF Brass Compression Coupling 1-1/4 in Cts

Product Description

The AQUALINE SCU-4-LF is a brass compression coupling designed for joining tubing and pipe in plumbing and water distribution systems. It accepts 1-1/4 inch CTS (Copper Tube Size) or 1 inch IPS (Iron Pipe Size) connections, giving installers flexibility across common pipe sizing standards. The lead-free brass construction meets drinking water compliance requirements, making it suitable for potable water applications. Licensed plumbers and water service technicians install this fitting during new construction, repair, or retrofit work where a reliable mechanical joint is needed without soldering.

This coupling is suited for residential and light commercial plumbing applications involving copper tubing or iron pipe size plastic pipe. It is a practical choice in tight spaces or field conditions where heat-based joining methods are not preferred. The compression design allows for straightforward installation using standard hand tools, and the fitting accommodates both CTS and IPS sizing in a single unit, reducing the need to stock multiple fittings for different pipe standards.

Key Features

• Accepts 1-1/4 inch CTS or 1 inch IPS connections for cross-standard compatibility
• Lead-free brass construction suitable for potable water service
• Compression-style joint requires no solder, flame, or adhesive
• Compact coupling form factor for repair and retrofit installs
• Order increment of 1 for single-unit purchasing

Compatibility

Designed as an OEM-style replacement and repair fitting for plumbing systems using 1-1/4 inch CTS copper tubing or 1 inch IPS pipe.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC requirements. Shut off the water supply and relieve system pressure before cutting or removing any existing pipe section. Ensure pipe ends are cut square and deburred before seating the compression ferrule and nut. Do not overtighten the compression nut, as excessive force can deform the ferrule and compromise the seal.

Technical Specifications

• Connection Size (CTS): 1-1/4 inches
• Connection Size (IPS): 1 inch
• Material: Brass (Lead-Free)
• Connection Type: Compression
• Weight: 0.75 pounds
• UPC: 843687100829

Standard Information

• Brand: AQUALINE
• Manufacturer Part Number: SCU-4-LF