The Westlake JB444 PVC junction box (4″ × 4″ × 4″) is a rugged, gasketed enclosure made from UV- and impact-resistant PVC, equipped with threaded brass inserts covering 47.5 cu in of internal volume . It meets NEMA 1/2/3/4/4X/12/13 standards and is approved by UL/CSA—perfect for commercial, industrial, residential, outdoor, and corrosive installations.
Evolt, a 100% Canadian‑owned electrical wholesaler, offers the Westlake JB444 at wholesale pricing, with fast shipping across Alberta & BC, backed by expert support. Get national‑grade quality at a fair price—no rebate markups or inflated costs.
Frequently Asked Questions
Q: Can I use JB444 outdoors?
A: Yes—its gasketed cover and NEMA 4/4X rating protect against dust, water, and corrosion, making it suitable for outdoor use.
Q: How do I mount this junction box?
A: Use the built-in threaded brass inserts and provided screws—mount it securely, and seal conduit entries with proper fittings.
Q: What’s the interior capacity?
A: It provides approximately 47.5 cu in (3.675″ L × 3.675″ W × 3.75″ D) of usable space.
Common Use Scenarios
Residential & retrofit wiring – junction connections behind walls, in basements, or utility spaces.
Outdoor fixtures & controls – connecting lighting or sensors on patios, garages, or decks.
Harsh environments – chemical plants, wash-down areas, or agricultural facilities thanks to PVC’s chemical resistance and NEMA 4X protection.
Installation Tips
Ensure the gasket sits evenly in the groove before tightening screws to maintain the NEMA 4X seal.
Use rigid PVC threaded connectors or O-ring fittings to seal conduit entries and prevent moisture intrusion.