If you've ever had a shot of warm water on a blistering hot day, you know why USWE created Hydrafusion. Durable and lightweight with built-in foam insulation, this simple, but breakthrough tube helps keep your water cooler in even the hottest temps. Durable and lightweight with built-in foam insulation, this simple, but breakthrough tube helps keep your water cooler in even the hottest temps. The kit includes a 36" TPU tube, High-flow Blaster bite valve that self seals after each sip and features a twist on/off bar to prevent leaks when not in use and a dust cover. The kit has a universal 1/4" diameter fitting with Plug-N-Play connect system. The kit is safe and reliable, 100% BPA and PVC free.