Taco VR1816-HY1-4C2A00 ECM High-Efficiency Circulator.
Applications zoning with circulators, Multiple Panel Radiators with thermostatic radiator valves.. For closed loop systems only
For water or maximum of 50% water/glycol solution.

ECM motor uses up to 85% less electricity
Infinitely variable speed settings to fine tune flow for any system
Wet Rotor Circulator
SureStart automatic unblocking and air purging mode
BIO BARRIER® filter protects pump from system contaminants
Integral Flow Check (IFC®) included

Dual electrical knock-outs and 6” stranded wire leads included for easy wiring
5 color LED displays: Operating mode (Blue, Orange or Green), Error code diagnostics (Red or White)
Whisper quiet operation

Maximum Shut-off Head: 18 feet
Maximum Flow: 16 gpm
Maximum Operating Pressure: 125 psi (8.6 bar)
Maximum Water Temp: 230°F (110°C)
Minimum Water Temp: 36°F (2°C)
Voltage: 120V, 60 Hz Single phase