K-Flex INSUL-TUBE® is a flexible, closed cell elastomeric tube insulation product used to conserve energy and prevent condensation on piping applications. The product's closed cell structure creates exceptional thermal properties (k-value of 0.245 at 75 deg F and wvt of 0.03 perm-in) that protect against moisture penetration in applications within a -297 to 220 deg F temperature range. K-Flex INSUL-TUBE® is widely used for its cold weather flexibility, durable skin surface, exacting manufacturing tolerances and lasting performance.
K-Flex INSUL-TUBE® Pipe Insulation, 3/4 x 1-1/8 x 1 in Nominal, 1-1/8 in Inside Diameter, 1-7/8 in Outside Diameter, 3/8 in Wall Thickness, R-Value: R2.2, -297 to 220 deg F, IPS x CTS x CTS Connection, NBR/PVC, Black, 6 ft Length, Domestic/Import: Domestic
| Nominal Size | 3/4 x 1-1/8 x 1 in |
| Inside Diameter | 1-1/8 in |
| Outside Diameter | 1-7/8 in |
| Wall Thickness | 3/8 in |
| R-Value | R2.2 |
| Temperature Rating | -297 to 220 deg F |
| Connection Type | IPS x CTS x CTS |
| Material | NBR/PVC |
| Color | Black |
| Length | 6 ft |
| Domestic/Import | Domestic |
- Insulated tube pipe insulation is an elastomeric material that helps retard heat loss, prevents condensation and provides effective moisture vapor resistance
- Environmentally friendly, CFC-free, mold-and mildew-resistant, fiber-free, and nondusting
- Can be used in underground applications above the water table
- Seal before back filling
- Unslit tubing can be slit lengthwise and fit over existing pipes
- Less than 7% linear shrinkage dimensional stability
- Less than 0.01 perm in water vapor permeability


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