Military-Standard Waterproof Case 8" Deep (Empty) from SKB is constructed of ultra high-strength polypropylene copolymer resin and sealed against dust and water. The hard outer shell is impact-resistant and features a rubber cushion grip handle for easy transport. An automatic ambient pressure equalization valve self-adjusts based on your altitude. The case is resistant to UV, solvents, corrosion, and fungus, making it the best way to ensure maximum protection for your equipment at all times.Gasketed Water & Dust-Tight DesignATA RatedMolded-In HingeCushion Grip HandleAuto Ambient Pressure Equalization ValveImpact-ResistantResists UV/Solvents/Corrosion/FungusTrigger Release Latch SystemUltra high-strength polypropylene copolymer resinUV, solvent, corrosion and fungus resistantComplete gasket seal makes these cases absolutely watertightAutomatic ambient pressure equalization valveResistant to corrosion and impact damageContinuous molded-in hingePatented trigger release latch systemRubber over-molded cushion grip handleLocking loops to accept a customer supplied lock