CoCocina 80x40mm ABS IP44 Waterproof Round Shape Electric Junction Box Electric Project Enclosure Case with 4 Grommets Cable for Outdoor DIY Electric: Amazon.com: Tools & Home Improvement
Commercial Electric 4 in. Round Non-Metallic Weatherproof Box with (5) 1/2 in. Holes, White WRB550PW - The Home Depot
TayMac 1-Gang Round Plastic Weatherproof Electrical Box Cover in the Electrical Box Covers department at Lowes.com
Carlon Electrical PVC Round Junction Box | Killingworth True Value
Electrical product information - ROUND JUNCTION BOX WHITE : ElectricSmarts Network
25 mm One Way Deep Round Plastic Electrical Junction Box - China PVC Junction Box, PVC Deep Junction Box | Made-in-China.com