Armaflex Elastomeric Insulation Roll – 3/8 in Wall
Continuous Armaflex insulation tube on a roll, to cover a long refrigerant line without joints.
AirGreen codeAG-IS-00204
514 316-2973 · sales@airgreen.ca
Quick facts
Armaflex roll insulation from Armacell is a continuous, coiled insulating tube with a 3/8 in wall. It covers a long refrigerant line in a single piece, where you would otherwise have to line up dozens of 6 ft lengths and glue every joint.
One piece from the outdoor unit to the air handler
The roll is made for long runs: a central heat pump whose air handler is in the basement, a line that goes up to the attic or a service riser over several floors. Fewer joints means less glue, less installation time and fewer places where humid air can reach the cold copper and cause condensation.
Six diameters, a length suited to each
- 1/4 in pipe: 175 ft roll
- 3/8 in pipe: 155 ft roll
- 1/2 in pipe: 140 ft roll
- 5/8 in pipe: 125 ft roll
- 3/4 in pipe: 110 ft roll
- 7/8 in pipe: 95 ft roll
Before installing it
Unroll the insulation and cut it to the required length before sliding it onto the tube. Never stretch it to gain a few feet: it gets thinner and the ends eventually open up. Glue the ends with Armaflex 520 adhesive and keep the insulation away from the flame during brazing. For a 1/2 or 3/4 in wall, choose Armaflex insulation in 6 ft tubes instead.
Insulated by AirGreen across Greater Montréal
Our refrigeration technicians insulate the refrigerant lines of every heat pump they install in Montréal, Laval, Longueuil, on the South Shore and on the North Shore. RBQ licence 5645-9605-01. For availability or a quote, call us at 514 316-2973 or email sales@airgreen.ca with the diameter and the number of rolls.
Fewer joints on long runs
One continuous tube replaces some twenty 6 ft lengths butted together.
- Long refrigerant runs between the outdoor unit and an air handler in the basement or attic
- Soft copper tubing unrolled from a coil
- Lines running inside a wall or ceiling, where every joint would be hard to reach
- Small sizes for wall-mount and multi-zone heat pumps
6 sizes, one page
Each size has its own AirGreen code. Tap a row to select it.
| Pipe diameter | Part no. | AirGreen code |
|---|---|---|
| 1/4 in (175 ft roll) | APC01438 | AG-IS-00201 |
| 3/8 in (155 ft roll) | APC03838 | AG-IS-00202 |
| 1/2 in (140 ft roll) | APC01238 | AG-IS-00203 |
| 5/8 in (125 ft roll) | APC05838 | AG-IS-00204 |
| 3/4 in (110 ft roll) | APC03438 | AG-IS-00205 |
| 7/8 in (95 ft roll) | APC07838 | AG-IS-00206 |
Size of the pipe to insulate; roll length follows the size.
Specifications
From the manufacturer’s documentation. A value the manufacturer does not publish is not listed.
What to know before installing
- Unroll and cut the insulation to length before sliding it over the tube.
- Do not stretch it to gain length: it thins out and insulates less.
- Glue every end and joint with Armaflex 520 adhesive.
- Keep the insulation away from the flame while brazing.
You may also need
A.C.R. Soft Copper Tube – 50 ft Coil
Armaflex 520 Insulation Adhesive
Armaflex Foam Insulation Tape – 1/8 × 2 in × 30 ft
Armaflex Elastomeric Tube Insulation – 6 ft Length
Armaflex Sheet Insulation – 36 × 48 inInsulationSee all
Frequently asked questions
Why a coil instead of 6 ft lengths?
On a long run, the coil saves a string of butt joints. Fewer joints means less glue, less time and fewer weak spots.
Is the coil available with a thicker wall?
This product comes in a 3/8 in wall only. For a 1/2 or 3/4 in wall, use the 6 ft Armaflex tubes.
Which size do I need?
The size of the copper tube being insulated. A 3/8 × 5/8 in line set needs one 3/8 in coil and one 5/8 in coil.
Can you install it?
Yes. Our technicians insulate the lines on every heat pump installation in Greater Montréal.
Insulate long runs in one piece
Tell us the size and the quantity: we confirm availability and send you a quote. Or let our technicians install it for you.
Specifications from the manufacturer’s documentation, checked on October 7, 2026.