The filter funnel has a melted filter plate and is used for filtration without vacuum. When using the filter funnel, a filter paper can be dispensed with.– Conical shape – Filtration without filter paper possible – Filter funnels mate to the filtering flask via a conical rubber seal (GUKO) – Fired-on, highly durable white print – The filter funnel has a melted filter plate and is used for filtration without vacuum. When using the filter funnel, a filter paper can be dispensed with.– Conical shape – Filtration without filter paper possible – Filter funnels mate to the filtering flask via a conical rubber seal (GUKO) – Fired-on, highly durable white print –