Header
Carnation
Carnation

Plumbing - Thermostatic Mixing Valve (Hidden)

Honeywell thermostatic mixing valve 

Honeywell AM100C1070-UT-1 

Available for about $82.

http://www.pexsupply.com/Honeywell-Sparco-AM100C1070-UT-1-1-2-NPT-Union-Mixing-Valve

This model meets ASSE 1070