INSULATED TUBE - Insulates in hot weather and protects in tough conditions. HIGH FLOW VALVE Lightweight, self-sealing Comet bite valve can be opened & locked with one hand. Includes dust cover. PLUG-N-PLAY - Universal ¼ in diameter fitting with quick connect system. 100% BPA & PVC FREE - No weird taste, no unnecessary and harmful chemicals. BEYOND LIFETIME : If you experience any issue, we’ll repair or replace the item for free. Whatever it takes to keep your adventure going.