Can this be used with 11/32" hose?

I'm sure it could be used, you would have to get the correct adapter fittings though. On another note I would not recommend purchasing. I never installed because the sensor screws into the fitting and is the absolute smallest fitting I have ever seen. I was concerned a bug may hit it and cause it to break off. It appears very delicate and easily broken.

How do you get the sensor to not leak? I have tried thread sealant and thread locker.

I use TEFLON tape, 3 passes. No leaks

is this brass or something else? Do I get what is pictured? Derailed 13021? With 6an bard fittings?

The one I got was not brass. Aluminum or other alloy.

That is the thread...-6 (roughly 3/8)

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Description

🌡️ Stay Cool, Stay Ahead: The Smart Thermostat Your System Deserves

DURABLE BUILD - Machined exterior and brass barb fittings guarantee long-lasting performance under pressure.
COMPACT LIGHTWEIGHT - At just 1.6 ounces and 4.25 x 2.75 x 1.38 inches, it fits discreetly without bulk.
UNIVERSAL COMPATIBILITY - Standard -6AN inlet fittings ensure seamless integration with your existing system.
PRECISION THERMAL CONTROL - Activates at 180°F and deactivates at 165°F for optimal fluid temperature management.
PLUG AND PLAY INSTALLATION - Includes all necessary fittings for quick, hassle-free setup—get your system running faster.

The Derale 13021 In-Line Fluid Thermostat offers precise temperature control with a preset turn-on at 180°F and turn-off at 165°F. Featuring durable brass 3/8 inch barb fittings and standard -6AN inlets, this compact, machined thermostat ensures reliable, easy integration into your HVAC or fluid system for efficient thermal management.

Specifications

Manufacturer	Derale
Brand	Derale
Model	In-Line Fan Control -6AN
Item Weight	1.6 ounces
Product Dimensions	4.25 x 2.75 x 1.38 inches
Item model number	13021
Exterior	Machined
Manufacturer Part Number	13021
OEM Part Number	13021
Mirror Adjustment	Button Control
Special Features	Programmable, Auto-Scheduling
Voltage	230 Volts
Wattage	3.45E+3

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