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PVC Junction Box · 6 x 6 x 4 in · Gasketed NEMA 4X Enclosure · Westlake Pipe & Fittings RJB664
SKU: RJB664
Gasketed PVC junction box with 6 x 6 x 4 in dimensions, 139.5 cu in capacity, and threaded brass inserts for rigid PVC conduit installations. CSA and UL listed, with NEMA 1/2/3/4/4X/12/13 ratings for indoor, outdoor, wash-down, and corrosive environments.
Delivered to you by Jul 26 (Within Western Canada)
If shipping issues arise, contact us and we’ll work with the courier to keep your job on track.
What this product is for
This 6 x 6 x 4 in (152 x 152 x 102 mm) PVC junction box is used to protect and contain wire splices and pull points in rigid PVC conduit systems. It is a non-metallic enclosure with a gasketed cover for applications where moisture, dust, or corrosive exposure are concerns.
Use for
Use for branch circuit junctions, outdoor lighting connections, control wiring, irrigation and utility connections, and conduit runs in residential, commercial, and industrial installations. Commonly selected where electricians need a corrosion-resistant box with more working space than smaller device boxes.
Avoid for
Avoid using this box where a device box, pull box with specific hub configuration, or hazardous-location enclosure is required. Do not assume field modifications or conduit entry methods will maintain the enclosure rating unless installed with compatible fittings and proper sealing practices.
Best for
Best for outdoor conduit systems, wash-down areas, agricultural buildings, mechanical spaces, and corrosive environments where metal boxes may not be ideal. The gasketed cover and PVC body help reduce concerns about rust and surface corrosion.
Installed in
Typically installed on walls, service areas, exterior building surfaces, utility structures, and process areas using rigid PVC conduit. For outdoor or wet-location work, electricians commonly pair boxes like this with threaded hubs or approved fittings to help maintain the enclosure seal. Actual performance depends on installation conditions, fittings used, and local electrical code.
Why this product exists
This product provides a larger non-metallic junction space with environmental protection for conduit systems that need more cubic capacity and corrosion resistance than standard steel boxes. Threaded brass inserts help provide secure cover attachment and repeated access for maintenance.
Compared with similar products
Compared with smaller PVC junction boxes, this 139.5 cu in enclosure gives more room for conductor splicing and routing. Compared with metal junction boxes, PVC is typically preferred in corrosive or wash-down areas. As a rule of thumb, larger junction boxes are commonly chosen when conductor count, splice volume, or bending space would make smaller boxes harder to work in; actual box sizing must follow code and conductor requirements.
Specifications
- Manufacturer part number: RJB664
- Legacy/common part reference: JB664
- Brand: Westlake Pipe & Fittings
- Product type: PVC junction box with gasketed cover
- Nominal size: 6 x 6 x 4 in (152 x 152 x 102 mm)
- Approximate outside dimensions: 6-3/8 x 6-3/8 x 4.188 in (162 x 162 x 106 mm)
- Cubic capacity: 139.5 cu in
- Material: moulded PVC
- Colour: gray
- Cover: screw cover with gasket
- Inserts: threaded brass inserts
- Environmental ratings: NEMA 1, 2, 3, 4, 4X, 12, 13
- Certifications: CSA and UL listed
- Application: rigid PVC conduit systems
- Country context: Made in Canada listing indicated in source catalogue context
Minimum Order $20
We accept the following payment methods:
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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 |
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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