- Brand: Sonic Electric
- Part #: M-4CB
4" Deep Steel Octagon Concrete Box with 1/2" & 3/4" Side Knockouts
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4" Deep Steel Octagon Concrete Box with 1/2" & 3/4" Side Knockouts
In Stock
Ships in 1-3 Business Days
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Product Details
Description
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The 4" Steel Octagon Concrete Box – 4" Deep is designed for secure and reliable electrical installations in concrete structures. Constructed from 16-gauge sheet steel, this box offers exceptional durability and strength. The galvanized finish enhances corrosion resistance, ensuring long-lasting performance in various environments.
With (2) 1/2" knockouts on sides 1, 3, 5, 7 and (2) 3/4" knockouts on sides 2, 4, 6, 8, this box allows for flexible conduit entry and easy installation. The 4" depth provides a 49.2 cubic inch capacity, offering ample wiring space for complex electrical setups. Additionally, it is rated for fixture support of 50 lbs or less, making it ideal for lighting and junction applications.
Key Features:
- Material: 16 GA sheet steel for superior strength and durability
- Finish: Galvanized for corrosion resistance and longevity
- Depth: 4" for additional wiring capacity
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Knockouts (KOs):
- Sides 1, 3, 5, 7: (2) 1/2" KOs each
- Sides 2, 4, 6, 8: (2) 3/4" KOs each
- Capacity: 49.2 cubic inches for secure wiring connections
- Fixture Support: Rated for fixtures weighing 50 lbs or less
- Application: Ideal for electrical wiring in concrete installations, supporting lighting fixtures and junctions
Customer Reviews
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Is this product in stock?
Inventory is updated regularly, but availability may change. Contact us for current stock on large orders.
How quickly will my order ship?
Most in-stock orders are processed within 1–3 business days. Standard shipping typically takes 1–5 business days, depending on your location.
Can I return this product?
Yes. Most products can be returned within 30 days of your order date, provided they are new and unused. Some exclusions and conditions apply. Please review our Return Policy for complete details.
Are there restocking fees?
Yes. A 30% restocking fee applies to eligible returns. Original shipping charges are non-refundable, and customers are responsible for return shipping costs. The restocking fee can be waived with a new order.
Is this product UL Listed or ETL Listed?
Certifications vary by product. Please review the product specifications or contact us to confirm certification details.
Does this item include a manufacturer warranty?
Most products are covered by the manufacturer's warranty. Warranty terms and coverage vary by brand and product.
Do you offer contractor pricing?
Yes. All products already include contractor pricing. Select a multi-pack option to save up to 10%. Your discount is automatically applied when you choose a qualifying multi-pack quantity.
Can I request bulk pricing?
Yes. Use the Add to Quote option on any product page to request a custom quote, or contact us directly for volume pricing and project-specific quotes.
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Our team is ready to assist you via chat, email hello@sonicelectric.com or phone (323) 934-3744 with product information and technical guidance.
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Shipping Information
Orders ship in 1-3 business days with tracking provided within 72 hours. Shipping Policy
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Returns & Exchanges
Non-defective items may be returned within 30 days with a 30% restocking fee waived when you place a replacement order. Shipping costs are non-refundable, and return shipping is the customer’s responsibility. Return Policy
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