1"Copper Tube Size (1-1/8"OD) x 72" x 1/2" Wall Pre-Slit Pre-Glued Tubular Insulation, Foam Cover

K-Flex 7PXL048118 – 1-1/8" OD x 1/2" Wall Pre-Slit, Pre-Glued Pipe Insulation, 6' Length

The K-Flex 7PXL048118 is a closed-cell, flexible elastomeric insulation specifically designed for 1-1/8" copper tube size (CTS) piping. With a 1/2" wall thickness and a 6-foot length, this insulation delivers reliable thermal performance and condensation control for HVAC and plumbing systems. Its pre-slit and pre-glued configuration simplifies installation and provides a secure, continuous barrier without requiring additional adhesives.

This product is engineered to reduce heat transfer, minimize energy loss, and help maintain system efficiency in both hot and cold water applications. It is suitable for residential, commercial, and industrial installations and meets performance expectations on demanding job sites.

Product Highlights

• Pre-Glued & Pre-Slit Construction – Speeds up installation by allowing for fast, secure pipe coverage without the need for separate adhesives.
• Closed-Cell Foam Design – Provides effective thermal insulation and prevents condensation on cold lines.
• 1-1/8" Copper Tube Size Compatibility – Matches standard CTS piping for proper fit and consistent performance.
• Made in the USA – Manufactured domestically under strict quality control standards.
• 0.21 Load Factor – Suitable for typical mechanical system loads and service conditions.

Specifications

• Nominal Copper Tube Size: 1-1/8 inch
• Inside Diameter: 1 inch
• Outside Diameter: 1-1/8 inch
• Wall Thickness: 1/2 inch
• Length: 72 inches (6 feet)
• Material: Flexible closed-cell elastomeric foam

Installation Guidelines

Ensure all pipe surfaces are clean and dry prior to applying insulation. Align the slit over the pipe and press the pre-glued seam firmly to close. If necessary, cut insulation to length with a utility knife. While this product is engineered for ease of use, contractors may add mechanical support or insulation tape where required by local code or specific jobsite conditions.

Professional Use Case

This product is intended for applications where consistent insulation performance, reduced labor time, and compatibility with copper piping are essential. Contractors can rely on this insulation to meet the performance and installation requirements of commercial and residential plumbing systems.