Category: Uncategorized. Want to know more? We’re here to help. GrainEquipment@eriksna.comContact Us Description Product Description Magnehelic® Differential Pressure Gages Indicate Positive, Negative or Differential, Accurate within 2% Related Products Rodent Control, Traps Read more Quick Clamp Ducting Read more Wheel Chocks Read more Meters, Fat and Molasses Read more