PVC Molded Junction Box, 4 x 4 x 4-In. - Amazon.com
Thomas & Betts - Junction Box Electrical Enclosure: Polyvinylchloride, NEMA 4, 4X & 6P - 54088133 - MSC Industrial Supply
DJC Supply Co. 4" x 4" x 3" PVC Plastic Junction Conduit Box with Pre Molded 3/4" & 1/2" Conduit Holes, Easy to knock out covers, Metal screws - Amazon.com
WeightechUSA Store Load Cell Junction Box WT-4 - weighing systems
YXQ 3 In to 4 Out Electrical Junction Box Terminal Connector Gland 6.4 x 3.2 x 2.3 inch Plastic Grey Dustproof Electric IP65 Waterproof Project Enclosure Outdoor Case - Amazon.com
4' Electrical Square Metal Conduit Boxes Thickness 0.7-1.6mm with UL Certificate - China Electrical Box, Junction Box | Made-in-China.com
Cantex 4 in. x 4 in. x 4 in. Junction Box R5133709 - The Home Depot