National Excelsior

Spiral Manufacturing Co., Inc. offers a complete line of metal air ducts and supplies for commercial and industrial applications. We manufacture high pressure Spiral loc-seam pipe and fittings at our plant in Coon Rapids, MN, where we ship products throughout the country. Spiral pipe is made from varies gauges of metal and designed for maximum strength, making it ideal for above and below ground installations. It is well suited for all types of ventilation including grain handling, dust removal, carbon monoxide exhaust and dual wall pipe for thermal and sound insulation. We offer a complete line of standard Commercial and Industrial Spiral pipe, fittings, and custom fabrications designed for HVAC and dust collecting systems, to a full line of chemical and UL listed underground duct. Our products are engineered and built to meet or exceed all SMACNA standards. Our products and services include: • Round and rectangular ducts • High, low and medium pressure pipe and fittings • Dust collection and pneumatic conveying distribution systems • Stainless steel, PVS coated, paint grip and aluminum Spiral pipe • Standard components for every application • Custom components engineered for any purpose or specific application • Aluminized for oven applications Spiral pipe is attractive and suitable for most any application. The surface can be painted to blend or stand out from the surrounding environment. In addition, spiral duct piping is economical and easy to install and can be used in a variety of settings. Our dual-wall Spiral insulated duct adds both thermal insulating and sound attenuating benefits Call Spiral Manufacturing Co., Inc. today for pricing and shipping information!

Mike's LP Gas and RV Service Center has proudly served the Twin Cities metro area for over 20 years. We provide a complete line of sales, service, and installation for RV's and campers, and fill propane tanks and cylinders. Call or stop by today and see why our customers keep coming back again and again!