HydraPak Comet Bite Valve

I picked this up to replace The bite valve on my mxxy bladder, because it was difficult to seal. Replacement was very easy, this valve fit right in. This bite valve and cover are good quality. The cover has a nice audible and tactile snap when it closes which is really nice and flow adjustment on the bite valve is easy.

The most important feature of this valve is the stem that sits inside the silicone sheath. The HydraPak stem is designed to maximize the flow by providing the most clear space that it can. No-name knockoff stems that I have used have four smallish holes that restrict the flow. Many currently on offer have 7/64 inch holes that provide low flow. An older CamelBack stem that I have has 9/64 inch holes, and provides adequate flow. The HydraPak has holes that are expanded to a triangular shape and flutes that are a simple cross that provide very good flow. After using this valve, I bought some HydraPak replacement stems+sheaths to upgrade my old valves to the HydraPak flow rate. Note that the replacement sheaths come in two lengths; get the one that fits your valve body if you want to upgrade. Otherwise, you will have to use your existing sheath with the new stem, which is OK, but then you don't have a spare sheath. I prefer the slightly angled geometry of this valve as it is easier for me to grab and hold in drinking position. Valves where the body twists 90 degrees to open the shutoff have an offset that I find awkward. The HydraPak shutoff doesn't interfere with the valve layout, and is also much easier to clean as a small brush can fit through the nearly straight opening. This is packaged in a small box rather than a plastic bag. All of the bite valves I have take the same hose size as the HydraPak. I use silicone tubing with 1/4 inch internal diameter and 3/8 inch outside diameter. I have never had leaks with this. I don't like vinyl tubing because it is too stiff. While the silicone tubing can kink easily, it also does not take a set and un-kinks just as easily. In cases where my routing makes the setup prone to kinks, I insert a length of 0.08 inch string trimmer line through that section, which prevents kinking.

This was a replacement for a valve that failed on my hydropak. Works great!

Confirmed: It fits the Platypus Hoser resevoir/neck system (who doesnt provide decent options for valve bites. Simply valve and cap function, nothing to bulky or cumbersome like other bite valves.

Great upgrade for my CamelBak. Eliminate leakage with easy installation.

I liked this replacement valve for my osprey reservoir. I had a barrel adjuster before where the whole valve turned. That one had more surface area to put in your mouth which was nice - this one has a short tip. That one also had a magnet and this one does not. But this one has a better flow rate and the included cover is a must have. I added a magnet manually using the kit that can be purchased separately.

Very high quality. Nice looking. Highly recommend

My hydrapak is functionally useless without this. The valve it comes with has no protection and would often leak at the slightest pressure. This is much better. I just wish it came included in the first place instead of having to buy it separately.