- Must be installed inside the Heavy Duty Filter (sold seperately)
- When installed on a K-9 II, 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
- Mini, Fluffer, K-9 I, K-9 II requires 1 Heavy Duty FIlter + 1 Muffler
- K-9 III requires 2 Heavy Duty Filters + 2 Mufflers