- Edmonton Stock: 8
PVC Junction Box · 8 x 8 x 4 in · Gasketed Cover, 258.6 cu in · Westlake Pipe & Fittings RJB884
8 x 8 x 4 in (203 x 203 x 102 mm) PVC junction box with gasketed cover for rigid PVC conduit systems. Westlake Pipe & Fittings RJB884 provides 258.6 cu in capacity and is commonly used where electricians need a non-metallic box for wet-location or corrosive-area conduit runs.
What this product is for
The Westlake Pipe & Fittings RJB884 is a moulded PVC junction box with cover gasket for joining conductors, making taps, and creating accessible pull or splice points in rigid PVC conduit systems. Its non-metallic construction suits installations where moisture, wash-down conditions, or corrosion resistance matter.
Use for
Use for indoor or outdoor conduit runs, service and control wiring junctions, irrigation or site lighting connections, and equipment areas where a gasketed non-metallic enclosure is preferred. It is suitable for wet locations when installed with compatible fittings and sealing methods.
Avoid for
Avoid using it where a metallic enclosure is specifically required, where box fill or conductor bending space exceeds the enclosure capacity, or where the installation method does not maintain the enclosure rating. Do not assume watertight performance without the correct cover, gasket condition, and properly sealed conduit entries.
Best for
Best for electricians and contractors needing an 8 x 8 x 4 in box with more working room than a small device box, while keeping the advantages of PVC in damp, corrosive, or outdoor environments. This size is commonly chosen when multiple conductors or larger splices need accessible space.
Installed in
Typically installed in commercial, residential, agricultural, utility, and light industrial conduit systems, including exterior walls, service areas, mechanical spaces, wash-down areas, and outdoor equipment locations.
Why this product exists
This junction box gives contractors a corrosion-resistant alternative to metal boxes for PVC conduit systems, while adding a gasketed cover and larger internal volume for easier conductor management. As a typical rule of thumb, larger junction boxes can simplify splicing and pulling compared with smaller boxes, but actual conductor fill and bending space must still follow local electrical code.
Actual performance depends on installation conditions, fittings used, conductor count, and local electrical code.
Compared with similar products
Compared with smaller PVC junction boxes, the RJB884 offers more internal working space at 258.6 cu in, which can help on multi-conductor or control wiring runs. Compared with metal enclosures, PVC is commonly selected where corrosion resistance and compatibility with rigid PVC conduit are priorities.
Specifications
- Manufacturer part number: RJB884
- Product type: PVC junction box with gasketed cover
- Nominal size: 8 x 8 x 4 in (203 x 203 x 102 mm)
- Volume: 258.6 cu in (approximately 4.24 L)
- Material: PVC
- Colour: Gray
- Cover: Gasketed cover
- Application: Rigid PVC conduit systems
- Certifications/listing: CSA/UL certified; suitable for wet locations
Minimum Order $20
We accept the following 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 |
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.
Related products
- Edmonton Stock: 3
- Edmonton Stock: 5
- Edmonton Stock: 5
Rigid PVC Duct Solvent Cement · 250 mL · EcoVOC Clear Formula · Royal RVOC250
RVOC250
22 – Loyalty Rewards- Edmonton Stock: 3
- Edmonton Stock: 56
- Edmonton Stock: 52
PVC FD conduit outlet box · 1-gang deep blank · no hub, lug mount · Royal RFD
RFD
11 – Loyalty Rewards- Edmonton Stock: 20
- Edmonton Stock: 3















