Home > Agriculture > Grain Guard GGF-80711 – 7 HP – 9″ x 14″ Grain Guard GGF-80711 – 7 HP – 9″ x 14″ $2,895 Call 204-746-8441 Email Us Overview Condition:New Horse Power:7 Description High Speed Centrifugal Grain Guard GGF-80711 – 7HP Single Phase Aeration Fan for 9″ x 14″ Opening for Air Max or Rocket. List Price $3,076. Sale Price $2,895. Call Tanner or Mark for more details. 1-866-746-8441.