Purchased to replace the stock valve on a conventional cylinder without a valve cap. This helps prevent water from escaping the valve and keeps every bit of sand and dirt from getting in along the way. I connected this to a Camelback 90512 conversion kit with on/off switch. It snaps right into this kit after you insert this piece into the tube of your hydration pack. The lid can be easily removed with one hand with a slight movement of the thumb. I have big hands, that might be a plus. Others may not be able to. This bite valve is pre-stamped and when pressure is released it seems to spring back and close fairly snugly. to have.
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