

Overview
Sound-absorbing foam insert acts as a muffler to reduce noise levels.
N686 fits inside Exhaust Silencer Assembly – N685. For Nortech/Guardair Legacy Drum Vacuums and Vacuum Generating Heads featuring “B, D, and S” venturi.
N886 fits inside Exhaust Silencer Assembly – N885. For all Guardair Drum Vacuums and Vacuum Generating Heads featuring “M” venturi.
Related Literature
Collapsible content
Features
- Polyurethane-ether foam tube
Includes
- (1) Exhaust Silencer Foam Insert
Shipping & Returns
Lead time: . Eligible for free ground shipping on domestic orders of $149 or more.
Returnable within 30 days. Must be in factory mint condition and is subject to a 25% restocking charge.
Read the full Shipping & Return policy here.
Warranty
Limited Warranty – One Year Warranty Period. See more details.