GROZ 44130 Self Priming high volume pump for use with petroleum based media. Steel construction with aluminum die cast head, steel plunger rod and PTFE seals. Complete with 2" Cast iron bung adapter. Delivers up to 750Ml (26oz./Stroke). recommended use: High viscosity petroleum based media, lacquer thinners; do not use: gasoline, water based media & other corrosive liquids.