Premium 6"x6"x4" Waterproof Electrical Box for Digital Control Panel Protect your electrical components from the elements with this watertight enclosure when mounting them outdoors. If you are installing an outdoor sauna with an electric heater and a digital control panel, this box is perfect for housing the digital control panel. UV Stabilized Polycarbonate Clear Hinged Access Door Watertight, lockable Enclosure Stainless Steel Hinges & Latch Includes flat Aluminum Mounting Plate & Screws Specifications Case Material: UV Stabilized Polycarbonate Latch Material: Stainless Steel External Dimensions: 8.1"L x 8.1"W x 5.5"D (incl latch & mounting tabs) Internal Dimensions: 6"L x 6"W x 4.3"D Rating: IP67 with Continuous Gasket Reference Dimensions: Harvia Xenio Digital Control Panel: 3.4"W x 4.4"H x 1"D HUUM UKU Control Panel: 2.2"W x 4.1"H x 1"D Note: if your sauna heater has built-in controls, it does not require this box.