--- product_id: 46728547 title: "Madison Electric Products MSB1G4PK MSB1G Smart Depth Adjustable Box, 1 Gang, 18.5 cu. in. Gray (Pack of 4)" brand: "southwire" price: "$79.72" currency: USD in_stock: true reviews_count: 13 url: https://www.desertcart.ec/products/46728547-madison-electric-products-msb1g4pk-msb1g-smart-depth-adjustable-box-1 store_origin: EC region: Ecuador --- # 18.5 cu. in. capacity Screw-in installation ease Durable thick-wall molded PVC Madison Electric Products MSB1G4PK MSB1G Smart Depth Adjustable Box, 1 Gang, 18.5 cu. in. Gray (Pack of 4) **Brand:** southwire **Price:** $79.72 **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects with precision and durability — don’t get left in the dark! ## Quick Answers - **What is this?** Madison Electric Products MSB1G4PK MSB1G Smart Depth Adjustable Box, 1 Gang, 18.5 cu. in. Gray (Pack of 4) by southwire - **How much does it cost?** $79.72 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/46728547-madison-electric-products-msb1g4pk-msb1g-smart-depth-adjustable-box-1) ## Best For - southwire enthusiasts ## Why This Product - Trusted southwire brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted Brand Legacy:** Backed by Southwire’s industry-leading innovation and commitment to quality. - • **Pack of 4 Convenience:** Get more done with a value pack designed for multiple installations or future projects. - • **Smart Depth Adjustable:** Customize box depth effortlessly to fit any wall thickness or wiring need. - • **Robust Stability Design:** Engineered with thick-wall molded PVC for unmatched rigidity and long-lasting durability. - • **Effortless Screw-In Installation:** Streamline your project with quick, secure mounting that saves time on every job. ## Overview The Madison Electric MSB1G4PK is a 1-gang, 18.5 cubic inch gray electrical box made from durable polyvinyl chloride with a thick-wall molded design for enhanced stability. It features screw-in installation for quick setup and comes in a convenient 4-pack, ideal for professional-grade electrical wiring projects. Manufactured by Southwire, a trusted leader in electrical supplies, this box meets UL specifications and is designed to support efficient, reliable electrical installations. ## Description Nearly one in two new homes built in the United States contains our wire, and we produce half of the cable used to transmit and distribute electricity throughout the nation. More than half of the world’s refined copper passes through one of our SCR systems, our tools & equipment business continues to grow, and our wire plays a key role in the manufacturing of other products, including automotive wiring harnesses and electrical motors. Southwire is a family-owned company operating in a globally competitive industry. As owners, we are proud of the company’s legacy and good standing in the community. Southwire’s success is rooted in hard work, social responsibility and innovation, and we believe that sustaining these core values is vital to the company’s future. ## Features - Robust Stability Design: The Southwire One Gang Non-Metallic Romex Box features one-piece, thick-wall molded construction for enhanced rigidity, making it a durable wiring box and secure stud box - Fast Box Installation: This convenient tool makes installing electrical boxes simple for more efficient use - Electrical Box Installation Tools: Southwire's handy equipment stands up to any task, so you can focus on the job at hand - Tools You Can Trust: Southwire tools are made from high-quality materials and are built to last - Delivering Power Responsibly: Southwire is known for providing innovative products and services and delivering on our promises ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B01D2O1770 | | Best Sellers Rank | #182,852 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #399 in Electrical Outlet Boxes | | Brand Name | Southwire | | Capacity | 18.5 cubic inches | | Color | Gray | | Customer Reviews | 4.5 4.5 out of 5 stars (198) 4.5 out of 5 stars | | Finish Type | Unfinished | | Global Trade Identification Number | 00784297022159 | | Included Components | 4 - 1 Gang Electrical Boxes | | Installation Type | Screw-In | | Item Dimensions D X W X H | 3.39"D x 2.24"W x 3.82"H | | Item Type Name | 1-GANG PVC ELECTRICAL BOX | | Item Weight | 0.27 g | | Manufacturer | Southwire | | Material | Polyvinyl Chloride | | Model Number | MSB1G4PK | | Number Of Items | 4 | | Part Number | MSB1G4PK | | Specification Met | Ul | | Style | 4pk, 1-Gang | | Unit Count | 4 Count | | Upc | 784297022159 | ## Images ![Madison Electric Products MSB1G4PK MSB1G Smart Depth Adjustable Box, 1 Gang, 18.5 cu. in. Gray (Pack of 4) - Image 1](https://m.media-amazon.com/images/I/51HTjO7xIwL.jpg) ## Available Options This product comes in different **Number of Items** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Simple solution to common problems *by on Reviewed in the United States September 28, 2018* I used these boxes to install new light sconces onto the front of my garage where fixtures/wiring didn't exist. They came packaged well and the boxes are MUCH better than the blue ones you can get at any box store. They are pretty stout plastic and with the screws, they make it easy to mount them in existing construction without having to make a larger hole than you need.I do recommend taking the screws out and running them in from the outside of the box in before attempting to final mount the box . . If you just try to screw them in, there is quite a bit of resistance from the tough plastic. So by running it in first, it kinda threads the box and allows it to thread easily once you actually mount the box. ### ⭐⭐⭐⭐⭐ Great electrical box for old work installations *by on Reviewed in the United States August 9, 2017* This electrical box was just what I needed. It securely fastens to the frame from inside the box minimizing the amount of cutting I had to do in the siding and particle board. The J-box cover piece fit this electrical box perfectly so the whole assembly blended very well with the existing vinyl siding and securely hold the NEMA 6-20 socket I installed in it. The wiring went through the back of the box easily (15 Gauge) and gives me a very sturdy setup for my EV charger. ### ⭐⭐⭐⭐⭐ Great for adding outlets to an existing wall. *by on Reviewed in the United States February 19, 2019* I moved my electric dryer and needed to move the 220 outlet. I found a stud, cut a hole in the drywall, pulled the wire and then screwed the box to the stud. It is very solid and easy to use. The cable glands were a bit small for 10-2 w/g, but I made it fit. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ec/products/46728547-madison-electric-products-msb1g4pk-msb1g-smart-depth-adjustable-box-1](https://www.desertcart.ec/products/46728547-madison-electric-products-msb1g4pk-msb1g-smart-depth-adjustable-box-1) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-08-31*