COLORED SCREW CAP FOR BROWN REAGENT BOTTLE 250 ML GL 45 SIMAX YELLOW (PLASTIC CAPS ONLY) Reagent Bottles New Reagent Bottles with PBTB COMPANY : BOHEMIA Czech Republic REAGENT BOTTLES 250ML WITH PBTB RED SCREW CAP HEAT RESISTANT, GL 45,DIN,SILICON GASKET WITH PTFE COATED, RING ETFE, SIMAX, Cap is heat resistant up to 200 °C