OVS? CASSETTESOur OVS (Open Ventilation System) Instrument Cassettes are manufactured to the highest quality.? The double hinge design allows for easier visibility of instruments, while offering space savings within the tray.? Our cassettes are made from a very durable stainless steel and have a unique flow-through design that allows maximum circulation for efficient ultrasonic cleaning.? Our cassettes are equipped with sturdy instrument racks that keep instruments in place during sterilization. They also feature a push button latch for easy open & close operation.