WHEATON® Glass Reagent Bottles, 250mL or 69oz Clear, 33-430 Finish, Type I Borosilicate Glass. (250 mL Bottle, Reagent, Type I, Safety Coated) 250mL Reagent Bottles, Type I Borosilicate Glass Safety Coated. Plastisol coating for safety; Clear borosilicate glass with writing patch; 33-430 screw cap attached; Polypropylene cap with PTFE liner