4 × 4 × 4 PVC box JB444, NEMA type 4 rated, from Westlake

        Westlake PVC 4x4x4 Electrical Junction Box JB444

        Westlake JB444 is a 4 × 4 × 4″ gray PVC junction box with gasketed cover, threaded brass inserts, and ~47.5 cu in capacity. Rated NEMA 1/2/3/4/4X/12/13—ideal for rigid PVC conduit in indoor, outdoor, and corrosive environments

        Score: 5.00 (votes: 1)
        Reviews: 1
        5.00|
        Royal
        18   – Loyalty Rewards
         
        • $18.92
        Arrives in 2-7 Days

        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.

          • SKU
            PVCJB444
          • Weight
            1 lbs
          • Manufacturer Part #
            PVCJB444
        • Trade Size
          4x4x4
        • Brand
          Royal
        • Warranty
          5 year
        Customer reviews
        Average rating:
        5.00(Votes: 1)
        Rating of votes (1)
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        • Kevin
          Apr 11, 2024, 01:31 PM
          Bought from Evolt for years, always good service. Evolt had the best price. Evolt delivered on time.
          Evolt Electrical Supply
          Jul 14, 2025, 01:40 AM
          Heartfelt appreciation for your response.

        Minimum Order $20

        We accept the following payment methods:

        Accepted payment methods

        Credit Card can offer cardholders convenience, security, rewards, and the opportunity to build a healthy credit history.

        Click here for Contractor Cash Account


        Trade Credit is a standard financing option for contractors and construction companies to obtain supplies and keep their projects moving. We offer 30-day credit terms to trade contractors on approved applications only. 

        Click here for Contractor Credit Account 


        (Contractor Accounts)

        Standard Shipping-Free on orders over $249 in Metropolitan Areas / $499 in Rural Areas


        (All Other Accounts)

        Standard Shipping-Free on orders over $499


        Minimum Order Is $20

        Freight Surcharge Apply To Oversized/Over-Weight Items(Not Limited To):
         

        • PVC and EMT Pipe 
        • Wire and Cable 
        • Items over 48 inches in length 

        Surcharges are applied to items on an individual basis regardless if the rest of the order meets prepaid levels. If a freight line appears at the time of check out it only applies to the Items carrying a surcharge and not the entire basket of goods.

        Shipping Options:

        • A courier can deliver to your home, office, or your job site
        • Pick up at local depot near you (applies to the following locations)

        Edmonton Warehouse 8135 Roper Rd Edmonton, T6E 6S4, AB 

        Burnaby Warehouse 5608 Goring St Burnaby, V5B 3A3, BC 

        Orders are typically delivered within two to eleven business days. The transit time begins the first full shipping day after your order leaves our warehouse. Please allow an additional 2-5 days for delivery to remote locations, additional fees may apply.

        THE FOLLOWING APPLIES TO STANDARD SHIPPING OPTIONS

        • We cannot deliver to P.O. boxes.
        • A signature may be required for shipments over $500.
        • No weekend delivery.
        • Wire & cable, EMT or PVC conduit, tube lamps 4ft or greater, and 10ft ground rods & mast pipes have special conditions.

        Standard Shipping cost on orders less than $499

        Total shipping cost = "Per Shipment" cost + "Per Item" cost.  The "per item" cost is listed in terms of price per pound.

         

        Product Group

        Per Shipment*

        Per Item

        Boxes

        $6.99

        $1.49/lb

        Conduit & Raceway

        $149.99

        $2.49/lb

        Connectors & Fittings

        $5.99

        $1.19/lb

        Data & Structured Home

        $5.99

        $1.19/lb

        Distribution Equipment

        $5.99

        $1.19/lb

        Emergency Lighting

        $6.99

        $1.49/lb

        Heating & Ventilation

        $6.99

        $1.49/lb

        Lighting Controls

        $5.99

        $1.19/lb

        Lighting Indoor

        $6.99

        $1.49/lb

        Lighting Outdoor

        $6.99

        $1.49/lb

        Tools

        $4.99

        $.99/lb

        Wire & Cable

        $49.99

        $2.29/lb

        Wiring Devices

        $5.99

        $1.19/lb

        Any combination of the above items

        Highest applicable per-shipment charge

        As above

        Product questions

        No questions yet. Be the first to ask the question!

        Effective Date: August, 15, 1998

        At Evolt Electrical Supply, customer satisfaction is our top priority. Please review our return policy below:

        Returns

        Defective Items:

        • If you receive a defective item, you may return it for a replacement or refund within 30 days of purchase.
        • To initiate a return, please contact our customer service team with your order number and a description of the defect.

        Non-Defective Items:

        • We do not accept returns for non-defective items. All sales are final once the product is shipped or ordered from the manufacturer. In certain circumstances we may amend this so feel free to contact our customer service team.

        Return Process

        Authorization:

        • Before returning any items, you must obtain a Return Merchandise Authorization (RMA) number from our customer service team. Returns without an RMA number will not be accepted.
        • Backordered items can not be cancelled if the item is in transit from the manufacturer, contact us to review.

        Shipping:

        • Customers are responsible for the return shipping costs. We recommend using a trackable shipping service or purchasing shipping insurance.

        Condition:

        • Returned items must be in their original packaging and condition. Any items returned damaged due to improper packaging or misuse will not be eligible for a refund or replacement.

        Refunds

        • Once we receive and inspect your returned item, we will notify you of the approval or rejection of your refund.
        • Approved refunds will be processed within [7] business days and a credit will automatically be applied to your original method of payment.

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