These bronze junction boxes are used for connecting multiple fountain lights to a single power supply. Available with solid bottom or built-in 1" threaded inlet in bottom, which can thread onto BWF10 bronze flange. Once installed, fill junction box with potting compound (sold separately). Potting compound is required to ensure watertight seal. Each 385mL container fills (2) UJ4 boxes. Note: Potting compound is the only recommended means of creating a watertight seal. The top plate by itself does not form a watertight seal, and attempting to form a watertight seal by overtightening the decorative top plate will result in the plate cracking under extreme pressure. SKU Outlets Body Dimensions Overall Dimensions (Including Seals) Inlet Wt UJ4 4 4.125" Diameter x 1.875"H 5.25" Diameter x 1.875" H N/A 3lb UJ4B 4 5.25" Diameter x 2.875" H 1" FPT 3lb UJ8 8 5.625" Diameter x 1.875"H 6.75" Diameter x 1.875" H N/A 5lb UJ8B 8 6.75" Diameter x 2.875" H 1" FPT 5lb