Pipe Insulation

Pipe insulation and pipe wrap for hot and cold water lines.

Pipe insulation and pipe wrap

Foam pipe insulation tubes, insulation wrap and foil pipe wrap from Armacell, Reflectix and Frost King for hot and cold water lines. Match the insulation to the pipe's outside size, not its nominal size: 1/2 in. copper is 5/8 in. OD, while 1/2 in. iron pipe is 0.84 in. OD. Small orders ship by parcel, free on qualifying orders; heavy, oversize and hazmat items ship at the freight shown in your cart for your ZIP before checkout.

The collection includes Armacell Tundra polyethylene foam pipe insulation, with self-sealing tees and elbows in 1/2 in. and 3/4 in. sizes, Frost King fiberglass pipe insulation wrap rolls (reflective and unfaced) and natural cotton pipe wrap, and Reflectix 24.5 in. x 25 ft. aluminum pipe wrap.

Plumbers, HVAC techs, building maintenance crews and homeowners use these to cover exposed lines in basements, crawl spaces and mechanical rooms. For sizing and R-value, see the pipe insulation buying guide. Related: plumbing supplies, heating and cooling and building supplies.

Attic batts and rolls, radiant barrier and house wrap are in insulation.

Related categories: black iron pipe fittings and PVC pipe fittings.

Questions about Pipe Insulation

What does this collection include?
Pipe insulation and pipe wrap for hot and cold water lines.

What size insulation do I need?
Foam sleeves are listed by the pipe size they fit and by length, with matching self-sealing tees and elbows. Wraps such as fiberglass, foil and cotton are listed by width and length, for odd sizes and fittings. Check the listing's size against your pipe before ordering.

Which brands do you carry here?
Brands in this collection include Armacell, Frost King and Reflectix.

How fast does it ship?
Each order ships from the warehouse that stocks the item. Your cart shows the shipping options and cost for your ZIP before you check out.

Does shipping cost extra?
Freight depends on which supplier ships the item. Your cart shows each shipment's freight and any free-freight threshold before you check out.

Can I get a better price on a larger quantity?
Larger quantities often price lower. In your cart, use "Request a quote for this cart" (or our Request a Quote form) for a volume price.

How can I pay?
By card at checkout. ACH or check is accepted on invoiced orders, and Net 30 terms are available for approved business accounts.

What if something arrives damaged or wrong?
Tell us within 7 days of delivery, with photos and your order number, and we will replace it or refund it at our cost. Items you no longer want can only come back with prior approval, within 14 days, unopened, with a 20% restocking fee, and the buyer pays the return freight. Custom, opened and hazardous items, and chemicals and adhesives once shipped, cannot be returned. Details are in our Refund & Return Policy.