K-9 III needs two Mufflers and two Heavy Duty Filters (one for each air intake end)

TWO PACK: pick between TWO Mufflers or TWO Heavy Duty Filters and Mufflers. 

• Mufflers must be installed inside the Heavy Duty Filter
• When installed, the decibels drop to 79 from 92 (measurement taken 24" from the dryer)
• Temperature is only increased by 2° F
• Airflow is slowed by only 2-3%
• Works on all K-9 Dryers
  
• K-9 III requires 2 Heavy Duty Filters + 2 Mufflers