Used Key Technologies ISO FLO vibratory feeder for sale!!! This Used Key ISO FLO vibratory feeder is perfect for large volume and heavy product distribution systems. Works perfectly with Heat Control Faskback systems. This ISO FLO feeder also has two seperate pneumatic rotary actuated gates for filling Fastbacks or other feeding devices on demand. The pan is 26 wide x 8 deep x 12′ long.