Doublewall Spiral Pipe and fittings for commercial and Industrial HVAC Ductwork.

Sheet Metal Connectors, Inc. offers doublewall round spiral duct and fittings, which are just one part of our complete line of HVAC products. Doublewall is manufactured with an E-Z Flange with barrel clamp, E-Z Flange Jr. with barrel clamp, or standard slip connection. Suitable for outdoor use, doublewall spiral pipe has two applications: thermal (temperature control) or acoustical (noise control). Many insulation thicknesses are available to meet your spiral duct needs including R-4.2, R-8, and R-12. Custom options are also available upon request.

Refer to the choices below to learn more. Contact us for a quote or to receive additional information about our doublewall spiral pipe and fittings for thermal or acoustical applications.