100, 300 og 500 ml funnels, base with 70 µm steel support, no. 8 stopper Outer Spin-lock closure. Stopper for suction flask, manifold or WaterVac pump. Made of type SS316 stainless steel. For 47 mm filters. Filtration area: 11.6 cm². Can be flame sterilized.
Graduations: 100 ml funnel: at 50 ml and 100 ml 300 ml funnel: at 100 ml and 300 ml 500 ml funnel: at 100 ml, 300 ml and 500 ml
See leaflet of the stainless steel filter holders by Rocker.
See video about the filter holders.
And see flame sterilization protocol for the steel filter holders.