Sea Dog Bilge Pump Water Alarm Panel w Switch [423037 1] Dronar Fish Finder hole diameter controls flow rate CWR 91020 hole diameter controls flow rate Feed System Feed wheel ensures constant seed flow from the hopper Seed Plates Included 3 seed plates included with each drill Holes per Plate 13 holes per plate Total Flow Adjustments 39 total seed flow adjustments Hole Diameter Range 3 32 in to 3 4 in Hole Identification Holes are numbered for easy selection Calibration Requirement No calibration required between drills Seed Plate Change Plates can be changed easily without tools Float Range 4 inches of vertical float Mounting System Cradle bracket allows full up and down float Suspension Spring suspension system Ground Contour Following Each drill follows ground contours independently for uniform seeding depth Whether operating on no till terrain or solid seedbeds Length Between Fasteners (inch): 3 7 8" Bilge Pump Water Alarm Panel with Switch