Hayward FDXLWHA0001 FD Complete Wiring Harness Assembly Replacement Kit for Select Hayward H-Series Pool Heater Fd complete wiring harness assembly Fits hayward universal h-series low nox pool heater models h150fdn, h150fdp, h200fdn, h200fdp, h250fdn, h250fdp Also fits hayward universal h-series low nox pool heater models h300fdn, h300fdp, h350fdn, h350fdp, h400fdn, h400fdp Used only on heaters made before 5/11/2010, serial #21130005101018001 Weight 8.5 pounds