581x
Indeeco 581x-30360-04202 Heater Element 277V 3300W 277-VOLTS finned element
You will see that Safety Technology International uses tamper-resistant screws here.
Indeeco 581x-30360-04302 Heater Element 277V 3300W 277-VOLTS finned element NEW
What stands out about Whirlpool is the robust stainless steel they use.