CUSTOM SPIRAL DUCT & FITTINGS FOR COMMERCIAL HVAC

Marks Supply is your source for reliable and cost-effective custom fabricated spiral duct and fittings.

• Using only the highest quality prime materials; G90 galvanized, galvaneal (satin), PVC or stainless steel, a cost effective and reliable source of custom fabricated duct and fittings are now available from Marks Supply to meet your requirements.
• Manufactured to the highest quality standards with state-of-the-art machinery and a highly trained and experienced workforce.
• The fit and finish of our spiral duct products help enhance your credibility as the installing contractor.
• Specially designed accessories have shown great savings in installation time.
• Sizes available: 4" to 48" diameter

Available fittings include