The Graco ToughTek M680a Bare Piston Pump System with Stainless Steel Hopper (24T836) is a professional-grade pneumatic mortar sprayer engineered for contractors who need reliable performance when pumping abrasive, cementitious, and heavily filled materials. Featuring an all-stainless-steel design and Graco's durable piston pump technology, the ToughTek M680a delivers up to 10.88 GPM and 1,000 PSI while handling demanding materials such as epoxy mortars, non-skid coatings, cementitious materials, and polymers filled with glass flake, silica, or sand. The pneumatic design uses a single air source to operate the pump and atomization air, while the stainless-steel construction provides excellent durability and simplifies cleanup when working with challenging materials. Built for industrial coatings, mortar, concrete repair, marine, bridge, and specialty construction applications, this system is ideal for professional contractors who need a durable, configurable pumping platform for demanding materials. Available from NMR, your authorized Graco dealer and service center for professional spray equipment, parts, repairs, and technical support.