The ground joint connection eliminates the phthalate contamination that can occur when using silicone or neoprene stoppers

·         The support base has a 40-60 micron porosity glass frit and an integral vacuum connection that is located above the drip tip to prevent contamination of the vacuum line with filtrate droplets

·         Each apparatus is supplied with a funnel, an anodized aluminum clamp, a 47 mm fritted glass support base and a filtration flask

·         Joints are 40/35

·         Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements