PIZ1516503 Thermwell Wrap‑On Insulation Roll – 3&P (...)

The Thermwell SP41X is a wrap-on fiberglass insulation roll designed for insulating pipes up to 3″ in diameter. Measuring 25 feet in length, this roll features faced fiberglass with an integrated vapor barrier and secure adhesive backing for fast, continuous coverage. The product is engineered for thermal efficiency, fire resistance, and moisture control, making it ideal for HVAC, plumbing, and process piping. Its flexible, conformable design allows for snug fitting around valves and fittings, while the fire‑tested facer adds durability. Suitable for both new construction and retrofit applications, the SP41X helps reduce heat loss, prevent condensation, and improve system performance.

3″ diameter fiberglass insulation wrap, 25′ roll, designed for slip-on pipe insulation in HVAC systems, labeled for easy application.

Manufacturer: Thermwell Products Co., Inc

Product Features

• 3″ diameter capacity × 25′ roll length
• Faced fiberglass insulation with vapor barrier facer
• Integrated adhesive backing for seamless wrapping
• Class 1 fire rating per ASTM E84
• Flexible for easy installation around valves and fittings
• Reduces heat loss and prevents condensation
• Suitable for HVAC, plumbing, and process systems

Product Attributes

Availability