aWe offer chemical hand pump. Rp20p: with pp piston, 3pcs pp telescopic tube. rp20pt: with ptfe piston, 3pcs pp telescopic tube. *application: acid, alkali, gasoline, diesel, machine oil, water and alcohol. applicable drum: 5, 15, 30 and 55 gallon containers. capacity: 400 cc / rotation. packing: 4pcs/ctn/13/14kgs/3.2'patented in taiwan, china.