On an insulated top-floor ceiling, every light box is a hole in the air barrier. The Arlington FN430FGC is a round, nail-on ONE-BOX™ vapour box for ceiling fixtures: a flange with factory gasket seals to the poly, and the 30.5 cu in body leaves room for splices. It is rated for fixtures up to 50 lb, is not a fan box, and this GC part number includes the grounding clip Arlington specifies for Canadian orders.
Why builders and electricians pick it
- Gasketed flange forms a barrier against air infiltration at ceiling fixtures under attics.
- Nail-on mounting with two 16d nails supplied, for quick new-construction rough-in.
- Rated for fixtures up to 50 lb (UL and CSA per Arlington's rating chart); no fan rating.
- Arlington lists a 2-hour fire rating.
- Comes with NM95 and two NM94 cable connectors, a mud cover and gaskets for the knockouts.
Specifications
| Spec |
Detail |
| Brand |
Arlington Industries |
| Model |
FN430FGC (FN430F with grounding clip) |
| Type |
Round nail-on non-metallic vapour box for fixtures |
| Volume |
30.5 cu in |
| Fixture load rating |
50 lb (UL and CSA); not fan-rated |
| Fire rating |
2-hour (per Arlington) |
| Mounting |
Nail-on, new construction |
| Size (H x W) |
6.25 x 6.25 in |
| Material |
Plastic, black |
| Arlington pack |
20 pcs |
Pro tip from the counter
Arlington ships spare gasket pieces for the knockouts. Fit one around every cable you bring in and leave unused knockouts intact, because an open knockout is exactly the kind of leak a blower-door test finds at a ceiling box.
Best for: top-floor ceiling lights under attics, energy-efficient and Energy Star new builds, air-tight drywall approach projects, insulation and air-sealing contractors
Downloads: Spec sheet (PDF)
We ship Canada-wide from Vaughan, ON. Building a subdivision phase? Get trade pricing with a quote or call (905) 553-7171.