Stirrer for 20 litre pails in ECCO pump units or Spray Packs. Complete with lubrication-free air motor, silencer, speed control valve, mounting device and air hoses. Suitable for Spray pack 315L, 115L, 615L, 117L, 317L, 617L and for pumps Ecco Feed 115L-615L and Ecco Feed A2-SS.