The Ritchie Bolt Package 5/16 x 3 Nut with Washer (Part #18319) is a stainless steel hardware set designed for securing various Ritchie automatic waterers
Please replace the float with part number 18314
The five heaters (#11419) mount directly to the underside of the stainless steel trough
The heat pad is fully isolated
The threads are the same and it will wire to your new or existing heaters
Petersen Waterer 5" Smooth Copper Ball Float 100-1431 Petersen Big Pete 6 Parts List The Ritchie Bolt Package 5/16The Petersen Waterer Copper Ball Float is the standard and most recommended float. The 5" Corrugated Copper float will help regulate the waterer level in your Petersen Concrete Waterer. The float is found in the following models 44C, 74H, 120H, 144, 25, 250, 300, 350, 400, 450, 500, 650.