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1. saliva ejector suction adapter valves with adjustment switch, suction force can be adjusted up and down. 2. Durable, easy to disassemble and clean, made of high quality ABS material. 3. Suitable for most chairs, saliva ejector weak and strong suction adapter. 4. Wonderful replacement for the old or broken one, directly fitment. 5. Simple and reliable to use, convenient to install, wonderful accessory.
