7/8" ID x 3/4" Copper Tube Size x 72" x 3/8" Wall Rubber Insulation Cover

K-Flex 6RX038078 – 3/8" Wall, 7/8" OD Elastomeric Pipe Insulation, 6' Length

The K-Flex 6RX038078 pipe insulation is a flexible, closed-cell elastomeric solution designed to control condensation and limit thermal transfer in mechanical systems. With a nominal size of 3/4" and an outer diameter of 7/8", this 6-foot section features a 3/8" wall thickness and delivers reliable R-2.4 insulation performance. Ideal for use on chilled water lines, refrigeration systems, and other HVAC and plumbing applications, this insulation meets industry requirements for moisture resistance, durability, and ease of installation.

Formulated without fibers or CFCs, the insulation minimizes environmental impact while helping to maintain indoor air quality. Its physical integrity and thermal performance are maintained across a wide service temperature range of -297°F to 220°F, making it suitable for demanding commercial and residential system conditions.

Product Features

• Closed-Cell Structure – Prevents moisture intrusion and inhibits condensation formation on piping systems.
• Low VOC Composition – Meets air quality and environmental safety requirements for indoor mechanical insulation.
• Integrated Microbial Resistance – Contains antimicrobial agents to deter mold and mildew growth on insulation surfaces.
• Thermal Efficiency – Rated at R-2.4 for consistent temperature retention and energy efficiency.
• Flexible Application – Designed for field installation on copper, steel, and PVC piping with minimal effort.

Specifications

• Nominal Pipe Size: 3/4 inch
• Outside Diameter: 7/8 inch
• Wall Thickness: 3/8 inch
• Length: 6 feet
• Thermal Resistance (R-Value): 2.4
• Service Temperature: -297°F to 220°F
• Country of Origin: USA

Installation Guidelines

For optimal performance, install the insulation on clean, dry pipe surfaces. Seams should be properly sealed to maintain vapor barrier integrity. For best results on job sites requiring code compliance or long-term durability, insulation should be installed in accordance with manufacturer guidelines and relevant mechanical codes. Mechanical fasteners or approved adhesives may be used as needed to ensure a secure fit.