RectorSeal
RectorSeal AirTec 81914 MV4 4-Way Ceiling Diffuser
RectorSeal AirTec 81914 MV4 4-Way Ceiling Diffuser
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RectorSeal AirTec/TRUaire Retrofit 81914, model MV4, combines a four-way ceiling diffuser, grille and adjustable damper box in one polymer assembly.
- 8 x 8-inch four-way supply grille
- Stepped collar fits 6-, 7- or 8-inch round duct
- Integrated butterfly damper adjusts from the face
- Rotating mounting clips support installation from below the ceiling
- White high-grade polymer resists rust and yellowing
Specifications
Requires a 9-1/4-inch ceiling hole; overall size is approximately 11.38 x 11.25 x 7.25 inches. Mounting clips accommodate ceilings up to 1-1/4 inches thick.
Fitment: Confirm round duct size, ceiling-hole diameter, overhead clearance and ceiling support before installation. Tear away only the collar sections not required for the selected duct size.
Specifications
| Face / nominal size | 8 x 8 in; approximately 11-3/8 in square face |
|---|---|
| Duct sizes | 6, 7 or 8 in round |
| Air pattern | 4-way deflection |
| Material / color | High-grade polymer / white |
| Damper | Integrated adjustable butterfly damper with face-access handle |
| Required hole diameter | 9-1/4 in |
| Overall dimensions | 11.38 in L x 11.25 in W x 7.25 in H |
| Ceiling thickness | Mounting clip accommodates up to 1-1/4 in |
| Airflow rating | 350 CFM |
| Construction | One-piece grille and damper box with tear-away stepped collar |
Frequently asked questions
Which duct sizes fit the MV4?
The stepped collar accepts 6-, 7- or 8-inch round flexible or rigid duct.
Does it include a damper?
Yes. It has an integrated butterfly damper and a face-access adjustment handle.
What ceiling opening is required?
The published required hole diameter is 9-1/4 inches.
Can it be installed from below the ceiling?
Yes. RectorSeal describes a one-person installation using rotating mounting clips from below the ceiling.
Is MV4 the same as RectorSeal 81914?
Yes. Manufacturer and distributor pages map model MV4 to vendor part/SKU 81914.
Can it connect to square duct?
The listed stepped collar is for 6-, 7- or 8-inch round duct; a square-duct connection is not specified.
Documents & literature
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