The PT1400N uses R600a the Eco friendly hydroncarbon refrigerant gas to improve the energy efficiency of this unit. These multi-functional units with independent refrigeration above are perfect for preparing everything from pizzas to salads and deli meats. Featuring a granite work surface ideal for pizza preparation. The refrigerated toppings unit has a square glass sneeze guard and hold 6 GN 1/4 pans ( sold separately). The rear cold toppings unit accepts 1/4 or 1/2 GN containers and can be switched off independently. The under counter storage (GN 1/1) maximizes valuable available space with three easy loading doors which stay open at 90 degrees for easy loading.