Current Double K Dryer
- 2000 EV Dryer
- 2000 XL Dryer
- 9000 II Dryer
- Challenge Air 560 Dryer
- Challenge Air 850 Dryer
- Challenge Air Airmax Dryer
- Challenge Air Drycycle Dryer
Obsolete Double K Dryers
- 560 Dryer (prior to 2010)
- 2000 AD (prior to 2010)
- 2000 EV (prior to 2010)
- 2000 Plus Vac
- 9000 II (prior to 2010)
- Airmax (prior to 2011)
- Extreme (prior to 2010)