ComFit-D Rubber Mouthpiece

Designed for the ultimate in comfort, ComFit mouthpieces are the low-cost alternatives to other mouthpieces. An exceptional leak-proof seal assures better test results. And the versatile design fits most PFT valves and filters. 

• Soft, latex-free rubber eliminates risk of allergic reaction 
• Center support prevents air-flow restriction 
• Rims dip to comfortably accommodate the frenula
• 25 per Box