SAFE-FLO® SE VALVE, 100 PIECES/BG, SOLD AS BAG CROSSTEX 10000178Safe Flo Se Valve, 100 Pieces Bg, Sold As Bag Crosstex 10000178 Crosstex Safe Flo Saliva Ejector Crosstex Safe Flo Saliva Ejector The Safe Flo Saliva Ejector Is Made Up Of A Flexible Aspirator Tip And A Built In One Way Check Valve. The Unique Design (Saliva Ejector With The Valve), Prevents Back Flow From The Suction Line Into The Patient'S Mouth During Dental Procedures, Reducing The Chance Of Cross Contamination Safe Flo Se Valve, 100 Pieces Bg