The TZ 2 Hydration System features advanced materials that are virtually maintenance free. Simply rinse, refill and use again and again. Plug-n-Play quick disconnect is an easy-to-use push-button tube removal system. The Hydrafusion tube is surrounded by a non-fabric TPU extrusion to protect against snags and rips. The 45 degrees Surge bite valve offers a high flow rate with twist shut-off and protective dust cover. Slider Top wide slide top opening for quick and easy filling.