St Louis Fire Hydrants Manufacturers 813 Hempstead St The Kupferle Foundry Company has the experience of 140 years of manufacturing high quality hydrants, sampling stations, and water main flushing systems St Louis MO Fire Hydrants Manufacturers John C Kupferle Foundry Co www.blow-offs.com hydrants flushing hydrants post hydrants yard hydrants blow-off hydrants valve box hydrants sampling stations water sampling environment flushing systems water main systems hydrants flushing hydrants post hydrants yard hydrants blow-off hydrants valve box hydrants sampling stations water sampling environment flushing systems water main systems Business Reviews John C Kupferle Foundry Co Testimonials