The SPIRAL®system is a proven system of quick-coupled spiral ducts and fittings provided with factory-installed EPDM gaskets. The gaskets provide leak-proof and durable joints between SPIRAL®system components. The system components are available in a full range of diameters from Ø80 to Ø1600 mm and in different materials (galvanized steel, stainless steel and aluminum). SPIRAL system meets the requirements of PN-EN 12237 for air tightness class D (Certificate no. 0103/07 from RISE).

The high-quality of workmanship and factory-installed rubber gaskets enable easy and quick assembly of ventilation ductwork. Ductwork based on SPIRAL®system components guarantees long and leak-proof service life and requires no additional sealants.