Please replace the float with part number 18314
The five heaters (#11419) mount directly to the underside of the stainless steel trough
use clean water during installation
and it accommodates all 1/2" pressure valves used in Stall Fount II and Classic Equine by Ritchie models
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 Please replace the float withThe 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.