K-Flex 6RX068078 Insul-Tube 180 – Genuine OEM 7/8" ID x 3/4" Wall x 72" Black Pipe Insulation

The K-Flex 6RX068078 Insul-Tube 180 is a professional-grade closed-cell flexible elastomeric foam insulation designed to serve as the thermal "shield" for your HVAC and refrigeration piping. This 7/8" ID tube is specifically engineered to control condensation and prevent energy loss on cold-water plumbing, chilled water lines, and refrigerant suction lines. By maintaining a high resistance to moisture vapor and heat transfer, the Insul-Tube 180 ensures that your furnace and A/C series operate at peak factory efficiency. As a genuine K-Flex OEM product, it features a 3/4" wall thickness that provides superior thermal performance and protection against pipe freezing in residential and commercial applications.

Key Features and Function:

• Precision Thermal Management: High-resistance closed-cell structure prevents heat gain or loss, ensuring refrigerant stays at the correct temperature for the compressor.
• Genuine OEM Reliability/Fitment: Flexible, slip-on design allows for easy installation over 7/8" copper piping, conforming to bends and elbows without compromising insulation value.
• Advanced Condensation Control: The non-porous elastomeric foam acts as an integrated vapor retarder, eliminating the "sweating" that leads to mold growth and water damage.
• Heavy-Duty Durability: Fiber-free, dust-free, and mold-resistant material ensures a long-lasting, clean installation in plenums and mechanical rooms.

Product Details and Key Specifications:

• Part Number: 6RX068078 (Insul-Tube 180)
• Manufacturer: K-Flex USA (Genuine OEM)
• Part Type: Flexible Pipe Insulation
• Inside Diameter (ID): 7/8" (Fits 7/8" OD Pipe)
• Wall Thickness: 3/4"
• Length: 72" (6 Feet)
• Color / Material: Black / Closed-Cell Elastomeric Foam
• Temperature Range: -297°F to +220°F
• Fire Rating: 25/50 Rated (ASTM E84)
• Shipping Weight: 1.2 lbs

🛠️ HVAC Depot Pro Tip: Seal Your Seams

To ensure the 6RX068078 provides a 100% vapor seal, always use a high-quality K-Flex Contact Adhesive or specialized foam tape at all butt joints and longitudinal seams. Even the best insulation will fail to prevent condensation if air can reach the cold pipe surface. During your Diagnostic Check, look for compressed sections of old insulation; if the foam has lost its thickness, it has lost its R-value and must be replaced to prevent the system from overworking.

Cross-Reference & Compatibility:

The 6RX068078 is a direct OEM replacement for the following part numbers:

• OEM Numbers: 6RX068078, 6X068078, 7/8X3/4 Pipe Insulation
• Armacell / Armaflex: APT07834
• Aeroflex: Aerocel 7/8" x 3/4"
• Industry Standard: 078-34-R (7/8" ID x 3/4" Wall)

Extensive Model Compatibility List:

Note: Use 'CTRL+F' to search for your specific copper pipe size:

• 7/8" Copper Tubing: Standard suction line for 2.5 Ton, 3 Ton, and 3.5 Ton AC units.
• Line Set Applications: Fits most residential split-system refrigerant lines.
• Chilled Water Systems: Compatible with commercial 7/8" liquid delivery lines.
• Hot Water Plumbing: Suitable for 7/8" lines up to 220°F to prevent heat loss.