Fits any system with 5/16″ ID tubing such as Nalgene. Universal Quick Connect is designed to connect directly to the quick connect fittings provided on your personal hydration system. If your system was not supplied with quick connects, the addition of the UQC splice kit will allow you to add a Frontier Max or Frontier Pro filter directly to your hydration system tubing with a quick ñclick.” The double-button release system assures positive connection and prevents accidental releases due to bumps and drops. Valved connector stops the flow of liquid when disconnected. Smooth profile prevents the quick connect from catching on equipment or brush. Connects directly to all major quick connects. A “one size fits all” solution to making quick and secure tubing connections in the field. Use the UQC Splice Kit to connect a Frontier Max or Frontier Pro filter directly to your hydration drink tube, or to add extra tube length to improve flow on a gravity filtration system. Ideal for hikers, backpackers, campers, survivalsts, and preppers.