1503 Funnel,Website: , long stem 60° , Boro 3.3 GlassDescription: The so-called "standard funnel" is the triangle funnel 60 degree angle. So 60 degree is designed to adapt to the angle that square or round filter paper folded once expanded into 60-degree angle into the inner wall of the funnel . This filter paper can relatively affixed to funnel, so the filter progress is sage and convenient. Standard funnel shape is similar with triangle funnel, except that the angle of the funnel is correct. There are 4 sizes are available: 50mm long stem funnel, 60mm long stem funnel, 75mm long stem funnel, and 90mm long stem funnel.Material: Boro 3.3 Glass or neutral glassColor: ClearKey Product Features:1.Funnel is constructed with heavy uniform walls, molded rims, and fire polished stems to give a long service life2.Funnels have a high resistance to chemical attack, and mechanical and thermal shock3.High quaility pyrex glass4.Cheap priceSpecification:Cat. No.DiameterO.D. Of stemLength of stemQuantitymmmmmmPer case150350715014415036081501441503759150961503901115072