Hose protectors keep your hose rubber jacket from pulling loose from the crimped metal fitting. Once the hose jacket has separated and exposes the breaded hose inner liner you will start to have a hose leaks. Protect your hose from this problem with this Vented Hose Protector. Use one on every hose attached to your First- Stage Regulator to prolong the life of all your life support fittings. The Hose Protector is vented for easy water drainage and rapped drying.