Sievers Poly Tanks, LLC specializes in designing and building modified production and custom Diesel Exhaust Fluid (DEF) tanks. No matter what size or shape tank is required, we can build it. If no production tank fits your needs, we can design and mold any tank configuration to accommodate special needs. If you need pumps, hose reels, filters, tank gauges, non-vented lids, P/V vents, Micro Matic fittings, DEF hose, automatic nozzles, mounting equipment, ball valves, fill tube assembly, and more, then Sievers Poly Tanks has it. We stock and carry industry leading equipment that is compatible with DEF. Please give us a call at 866-866-8611 for more information and pricing.