Airex 72C E-Flex Guard HVAC Line Set Protector – 3/4" Wall Insulation

HVAC Line Set & Refrigerant Line Protection

The AIREX 72C E-Flex Guard is a durable HVAC line set protector designed to shield 3/4" wall insulation on outdoor refrigerant and copper line sets. This flexible line set sleeve helps protect exposed insulation from UV exposure, weather, and physical damage while providing a clean, professional finished appearance.

Designed for residential, multifamily, and commercial HVAC installations, E-Flex Guard provides a removable and reusable line set insulation protector and an alternative to traditional rigid line set covers and tape.

Available Sizes

6' Length – Model 72C

• 72C-B – 6' Black
• 72C-W – 6' White
• Available for online purchase

75' Continuous Roll – Model 750C

• 750C-B – 75' Black
• 750C-W – 75' White
• Available by special order for larger quantities and project orders

Planning a larger installation? Read our Line-Set Protection Guide and contact us for 75-foot roll availability and contractor quantity pricing.

Available in black or white.

Why Choose Airex E-Flex Guard?

✓ Protects Line Set Insulation – Helps shield outdoor refrigeration piping insulation from UV exposure, weather and physical damage.

✓ 3/4" Wall Insulation Compatibility – Model 72C is designed specifically for applications using 3/4" thick insulation.

✓ Professional Appearance – Provides a clean finished look compared with exposed insulation or traditional protective tape.

✓ Removable & Reusable – Allows easier access to refrigeration piping for inspection and service.

✓ Vapor Retarder – Helps protect the insulation system and maintain HVAC efficiency.

✓ Residential & Commercial Applications – Ideal for homes, multifamily construction and commercial HVAC installations.

Which E-Flex Guard Model Do I Need?

Choose your model based on the wall thickness of the line-set insulation:

1/2" wall insulation → Airex 72E
3/4" wall insulation → Airex 72C - Currently Viewing
1" wall insulation → Airex 72X

Important: The 72C designation refers to the insulation thickness/application. Confirm your copper tubing and insulation dimensions before ordering.

Tested Standards

AIREX E-Flex Guard has product/material testing that includes:

• ASTM G153 – Weatherization and UV Exposure
• ASTM E96 – Water/Vapor Permeability
• ASTM D412 – Tension Deformation
• ASTM D570 – Water Absorption
• ASTM E84 / UL 723 – Flame and Smoke Rating 25/450

Codes & Standards

E-Flex Guard is designed to address requirements related to protection of outdoor refrigeration piping insulation, including applicable provisions referenced by:

• International Energy Conservation Code (IECC)
• International Residential Code (IRC)
• California Building Energy Efficiency Standards
• ANSI/ASHRAE/IES Standard 90.1

Always verify applicable requirements with the local authority having jurisdiction.

Ideal Applications

• HVAC refrigerant line sets
• Outdoor refrigeration piping
• Condenser line-set protection
• Residential HVAC systems
• Multifamily construction
• Commercial HVAC projects
• New construction and replacement installations

Buying for a project?

We offer contractor and job-quantity pricing for larger HVAC and multifamily projects. Contact Solid Source HVAC for volume pricing.