KIMAX® Wide-Mouth Volumetric Flasks, Red RAY-SORB® Glass, 250mL Capacity, PTFE Stopper Size 19, Pkg. of 6

Heavy-Duty, Wide-Mouth Volumetric Flasks are made of RAY-SORB red-tinted glass. RAY-SORB protects solutions from harmful UV light. Uniform walls provide strength, durability and safety. Permanent markings are large and easy-to-read for quick identification. Flat interior bottom offers efficient stirring with standard stir bars. Flasks are graduated to Class A volumetric tolerances for accuracy. 250mL capacity. PTFE stopper size 19. Pkg. of 6.