Tired of the inconvenience and expense of saliva ejector valve tips that constantly pull off during a procedure or get lost? Upgrade to our Lock-On Saliva Ejector Valve Tips. For no more cost than regular silicone S/E tips, Lock-Ons fit your existing S/E valves and stay put under tension. Installing them takes only a few seconds. Fit all standard saliva ejector valves and adapters. Bright blue color identifies them at a glance. Silicone and Viton® ring construction is fully sterilizable up to 375 degree F. Three complete tips per pack with three spare locking rings.