Safety funnel made of stainless steel, Slimline, DIN61 thread, with lid,Safety funnel made of stainless steel, Slimline, DIN61 thread, with lid, , Overfill protection and flame arrester Material: stainless steel, unpolished. Seal made of Alveocel (polyolefin foam). Can be screwed onto plastic canisters. With lid, overfill protection, flame arrester and earth connection. The flame arrester, which reaches far into the container (approx. 150 mm long), prevents the ingress of sparks and can be unscrewed for cleaning or