Owens Corning 722597 Pipe Insulation 1-1/8 in OD 3 ft Fiberglass 1/2 in wall
Fiberglass pipe insulation with ASJ facing and adhesive slit fits 1-1/8 in copper tube and operates from 0 to 1,000 Degrees F
- Operates from 0 to 1,000 °F for extreme temperature resilience
- R-value 2.9 reduces heat loss and improves energy efficiency
- Plenum-rated with flame spread 25 and smoke developed 50 for code compliance
- Pre-slit with adhesive flap enables fast, tool-free installation
- Fiberglass tube fits 1-1/8 in OD copper pipe and 3/4 in iron pipe
Pipe insulation for 3/4 inch copper tubing
Owens Corning 722597 is a fiberglass tube designed to fit 1 1/8 inch outside diameter copper pipe, commonly used for 3/4 inch nominal sizes. The three-foot length arrives slit with an adhesive flap for fast installation. A tan ASJ facing provides a clean finish and plenum-rated performance.
Suits hot and cold lines needing thermal control
This insulation serves residential or commercial plumbing and HVAC runs where temperature retention and condensation prevention matter. The 0 to 1,000 degree Fahrenheit range covers typical heating and cooling fluids. Builders requiring thicker walls, different diameters, or non-fiberglass materials should look at other options.
Fits standard copper systems without special tools
The pre-slit tube with self-sealing flap wraps around existing pipe and closes by hand, freeing installers from tape or separate jackets. The 2.9 R-value adds thermal resistance while the 25 flame spread and 50 smoke developed indices meet common plenum codes. California Proposition 65 notice applies.
How it compares
Measured against everything we stock in Storage Sheds & Accessories, at today’s prices. Recalculated every night.
- Price $9.99
- Cheaper than about 63% of the 882 comparable items (median $13.99).
Specifications
| Product | |
|---|---|
| Brand name | OWENS CORNING |
Questions about this item
Does the 1-1/8 in OD slit tube with adhesive flap slide over my existing 3/4 in copper pipe without extra fittings?
Yes, the slit design with adhesive flap fits directly over 3/4 in copper tube sized to 1-1/8 in OD.
Will the ASJ facing rated at flame spread 25 and smoke developed 50 meet the same plenum code as my older fiberglass wrap?
The plenum-rated ASJ jacket carries a 25/50 flame and smoke rating, matching common plenum requirements for replacement sections.
After sealing the flap, how can I confirm the R-2.9 insulation is performing at the rated 0 to 1,000 °F range?
Measure the pipe surface temperature under load; it should stay close to ambient, confirming the R-2.9 thermal resistance across the 0–1,000 °F operating window.
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