Air distribution
BDD
Back Draft Damper
- Spring Loaded Backdraft Damper
- Neoprene damper seal minimizes leakage
- 20 gauge steel housing, aluminum spring loaded butterfly damper
- Gasket designed to withstand temperatures from -22 F to 180 F
- Requires from 0.04 to 0.08 in. wg pressure to open
- Simple installation, entire assembly inserts into duct
- Exterior foam gasket assures a tight seal against duct
- 4’’, 5’’, 6’’,8’’ sizes include stamped metal sleeve with center pin design
- 10’’& 12’’sizes include rolled metal sleeve with center post design
ADC
Duct Clamp
- The ADC clamps are intended to simplify fan installation and isolate fan vibration from rigid metal duct.
- ADC clamps are convenient in installations where regular removal of the fan is necessary for inspection and cleaning.
- ADC clamps are available in sizes 4” through 16” to fit corresponding duct sizes.
- ADC clamps in sizes 4” through 12” are equipped with integral hanging tabs.
ADA
Diffuser Adapter
- Quick and easy installation with no sharp edges.
- Can be used for ceiling or wall terminations.
- Preset for 1/2 and 5/8-inch drywall. •90° back-stop for a level, uniform installation with bottom flange for a permanent air seal.
- Off-set from joist for easy installation of ducting and clearance for application of tape or sealer.
- Duct-Stop-Point ensures no screws penetrate the collar and impede the insertion of the grille.
- A rigid bottom flange guarantees the drywall router tool conforms to the circular opening.
- V-shaped indentations on bottom edge for centering with previously installed fixtures.
- Available in 4’’, 5’’, 6’’
RAD
Round Adjustable Diffuser
- Dual flow: whisper quiet air supply or exhaust with lock nut
- To fine tune air flow from 0-100%
- Strong stainless steel grip clip provides snug fit.
- Extra thick foam gasket allows for tight seal on uneven
- Surfaces and provides quiet air flow
- Long-lasting durability with impact resistant, polymer resin.
- WG401 vent is compatible with Primex’s squeeze elbow
- Accessory EB4x90.
- Easy to install and remove.
- •Available in 4’’, 5’’, 6’’
