17030K supplied with a glass stopcock plug
· Easy-to-read durable black enamel scale for 17030K and 17021H-50
· 17121H supplied with a PTFE threaded stopcock assembly and a precision ground tip
· 17021H supplied with a PTFE compression fit stopcock assembly and a precision ground tip
· 17021H, 25 mL buret has a permanent brown stained scale
· KIM-KAP™ dust cap is included
· Funnel fill style buret
· Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements