Air Distribution Concepts Michigan Dealer and SalesAir Distribution Concepts: Designer and Fabricator of Custom Fabric Air Diffuser Systems.

Air Distribution Concepts (ADC), located in Delavan, Wisconsin, is one of the largest manufacturers of custom fabric air diffusers in the United States.

ADC designs and fabricates FlowCon Fabric Air Diffusers for a wide variety of air systems. All of its fabric ducts are custom made. They fabricate fabric diffuser systems for heating, air conditioning, evaporative cooling, ventilation, dehumidification, and makeup air. Its fabric diffusers, along with being tailor made for your application, are cost effective, good for the environment and aesthetically pleasing.

All ADC products are 100% manufactured in the USA. ADC’s focus is customer service

download (1)Lapine Metal Products: Makers of Single and Double Wall Spiral Duct Systems.

Lapine’s manufacturing facility produces Spiral/Long Seam Round/Flat Oval Ductwork for commercial and industrial HVAC systems.

LPM’s ductwork meets the latest SMACNA standards – “HVAC Duct Construction Standards Metal and Flexible”, is OSHA compliant and continues to strive for safety excellence.

Founded in Kalamazoo, Michigan, in 1988, Lapine services the Midwest and Southern States.


Strong, Versatile, Cost Effective, Eco Friendly.

UnderDuct by Monoxivent provides the most versatile and cost effective underground fiberglass reinforced plastic duct (FRP) on the market. We provide a wide range of solutions for the most demanding environments to standard layouts.

Factory Assembled

Minimizing installation time and reducing project costs.

UnderDuct is factory assembled to the greatest degree possible. This minimizes installation time and cost while maximizing product quality.

Designed for direct burial

UnderDuct is strong, versatile, cost effective, eco friendly.

UnderDuct does not require concrete encasement. When buried in compacted sand or pea gravel UnderDuct does not require hold downs. It will not bend, crush or leak due to brutal conditions.

Green Building

Underground FRP Duct is environmentally sound.

Due to the green aspects of our fiberglass reinforced plastic UnderSlab duct, FRP duct is a key component of a sustainable building. The quality and strength of our FRP duct means a longer life, which saves resources, and maximized airflow uses energy more efficiently.

Corrosion Composites by Monoxivent

Fiberglass Reinforced Plastic – Corrosion Resistant Products

Corrosion Composites, by Monoxivent, is the leading source for corrosion resistant fiberglass reinforced plastic (FRP) fabrication. Our FRP products are used in many industrial, water, wastewater, underground, industrial/commercial and HVAC applications where corrosion is a problem.

Fiberglass Reinforced Plastic Products Are:

Light Weight

High Strength


Corrosion Resistant Typical FRP Applications:

· Ducts

· Hoods

· Stacks

· Pipes

· Platforms

· Tanks

· Scrubbers

· Custom Items


Air Design, metro Detroit and Michigan Pottorff supplierPottorff’s products are backed by a 5-year product warranty, exceptional customer service, dependable Quick Ship capabilities, and AMCA/UL certified performance. We offer a full line of:

  • Air Control and Backdraft Dampers
  • Ceiling Radiation Dampers
  • UL Rated Fire, Fire-Smoke, and Smoke Dampers
  • Louvers and Penthouses
  • Duct Silencers, Panels and Enclosures
  • Actuators and Accessories