This part is a Heater, FloThru, Universal Fit, 15" x 2", 230v, 4.0kW..

 This heater will work in place of the following heaters: 1563-08 , 20-00245 , 20-00317 , 20-00318 , 20-00319 , 20-00324 , 20-00433 , 20-00434 , 20-00454 , 26-0034 , 26-0036-R1C , 26-0071B , 26-0314-5S-K , 26-0314-5T-K , 26-0809-5S-K , 26-0809-5S-KSP , 26-0809-5T-K , 26-0809-5T-KSP , 26-58029-5S-K , 26-58048-5S-KSP , 48-1540-HQ , 48-1540-RP , 48-1540-RS , 48-1540F-HQ , 48-3600-10-158H , 481540RP , 481540RS , 50081 , 53349 , 58028 , 58029 , 58048 , 58067 , 610938 , 9144-21 , B24040E , B24040N , B24040S , B24045T , B24055M , C2400-0073 , C2400-0158 , C2400-0304 , C2400-0304ET , C2400-0314 , C2400-0809 , C2400-0809-TPS , C2400-5000-1 , C2450-0307ET , C2450-5000 , C2550-0066ET-A , HA-B24045T-2S , HA-B24045T-2S5T

Features
Universal 15” length
Universal 4.0kW can replace 4.0 and 4.5kW ratings
Adjustable grounding and mounting studs
Adjustable Temp Sensor or High Limit cover
Multiple pressure switch ports (Pressure switch not included)
Stainless steel pressure switch plugs
2” gaskets

Housing Configuration    Straight
Heater Length    15"
Lead End Terminal Location    4-3/8"
Threaded Tap Orientation    12 O`Clock, 3 O`Clock, 9 O`Clock
Threaded Tap Location    12-3/4" From Leading End, 13" From Leading End, 3" From Leading End, 8-1/4" From Leading End
Kilowatts    1.0kW, 4.0kW
Voltage    115v, 230v
Sensor Stud Orientation    Adjustable
Mounting Stud Type    Adjustable
Heater Size    2"
Heater Application    Universal