Enquire About this product Features Ideal for pumping heavy oils over long distances!! Stainless steel pump with 4-1/4" air motor and 4" stroke for use in 55-gallon drums or suction tube assembly operations You must have JavaScript enabled to use this form. Your Name Your Email Telephone Number Product to enquire about Product Name: Series 425 Details Please provide any extra details you wish to enquire about such as installation, maintenance services etc here or when the best time to contact you is if you wish to be contacted by phone.