KIMAX funnel with a short, wide stem Constructed with a heavy uniform wall and a strong, fire-polished rim and stem to provide a long service life Funnel has a high resistance to chemical attack and mechanical and thermal shock Designed from ASTM Specification E1095, Type IV requirements Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements