How it connects
Align sleeve slots with cover tabs and snap together. Instructions specify no separate seal for this joint; caulking is specified around the cover at the wall.
Male and female halves
The sleeve carries receiving slots; the cover carries tabs. “Female” is descriptive terminology here, not a manufacturer-defined gender designation.
Usually connects to
- Matching WVK2A vent-cover tabs
Common sizes
- WVK2A uses a nominal 4 in. metal duct connector. Its 3-to-4 in. adapter is for the fan duct connection, not an alternate snap-joint size. Slot dimensions and engagement depth are unverified.
Where it is used
Kitchen and bathroom exhaust ventilation wall terminations
How to recognise it
Find the receiving slots at the vent-cover end of the metal sleeve and corresponding cover tabs. Confirm WVK2A identity; a nominal 4 in. diameter alone does not establish snap-joint compatibility.
Often confused with
| Confused with | How to tell them apart |
|---|---|
| Flexible-duct attachment | Flexible duct is secured to the metal connector with a zip tie; the cover-to-sleeve joint uses tabs and slots. |
Also called
WVK2A duct-to-vent-cover snap joint
Good to know
This sleeve-to-cover snap fit has no established interchangeability standard. Estimated 8 mm engagement and 6 × 3 mm slots are not specifications.
Design with real parts
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