The smallest in-line junction box on the market - Electrical Contracting News (ECN)
Uxcell Waterproof Junction Box 100x68x50mm ABS for Electrical Project (Black, Pack of 2) - Walmart.com
Electrical Small Junction Box Plastic Waterproof Project Case Gray 86x74x62mm ×3 | eBay
Uxcell Waterproof Junction Box 115x90x55mm ABS for Electrical Project Black - Walmart.com
Amazon.com: KASONIC Large Outdoor Electrical Box(12.5 x 8.5 x 5 inch) + 2 Small Outdoor Extension Cord Safety Cover, Weatherproof to Protect Outlet, Power Strips, Timer, Socket, Holiday Light Decoration, Black : Everything Else
5133164 PVC & Accessories 8X8X6 PVC Junction Box
Amazon.com: 20 Pieces Plastic Project Box Black Small Junction Box ABS Waterproof Project Boxes for Electronics, Electrical Junction Box Enclosure, 3.94 x 2.36 x 0.98 Inch/ 100 x 60 x 25 mm : Tools & Home Improvement