Ungraduated
· Bottles have a square cross-section
· 14250 has a wide appeal for general use, especially water sampling, milk dilutions and tissue culture work
· 14915 has a smooth marking spot
· Autoclavable to 121 °C without preconditioning
· Replacement cap is 14255-28
· Black phenolic screw cap, supplied unattached, has a cemented-in rubber liner and is suitable for autoclaving
· Manufactured from USP Type 1 borosilicate molded glass