The Derale 180 degree F In-Line Remote Cooler Fan Control Thermostat plumbs into a fluid line and switches a remote cooler's electric fan on only when the fluid gets hot enough, so the fan does not run unnecessarily. It turns the fan on at 180 degrees F and off at 165 degrees F and handles up to a 15 amp continuous draw. It uses -8AN male and -8AN female ports and comes with brass 1/2 inch hose barb fittings.
Specifications:
- Type: In-line fan control thermostat
- Ports: -8AN male x -8AN female
- Hose fitting: 1/2" barb (brass, included)
- Turn-on temperature: 180 degrees F
- Turn-off temperature: 165 degrees F
- Amp rating: 15 amps maximum continuous
- Function: Switches a remote cooler electric fan by fluid temperature
- Part number: 15721
FAQ
What does the Derale 15721 thermostat do?
It switches a remote cooler's electric fan on when the fluid reaches 180 degrees F and off at 165 degrees F, so the fan only runs when needed.
What ports does it use?
It has -8AN male and -8AN female ports and includes brass 1/2 inch hose barb fittings.
How much current can it switch?
It is rated for up to a 15 amp maximum continuous draw.
Where is it installed?
It is plumbed in-line in the fluid line feeding a remote cooler.

