EB2897(A)(3)
DALE RH-25 50 OHM 20W CHASSIS MOUNT POWER RESISTOR
The product measures exactly 1 inch x 2 inches x 1 inch, so it won't take up much room.
DALE RH-5 5W CHASSIS MOUNT POWER RESISTOR
Thermal Transfer Products LTD builds things that last longer than most competitors.