Coolant: Dynaflux Defense Coolant is recommended for Heat Station systems which may experience freezing conditions.  It is available in premixed one gallon jugs (Defense RTU) or as a concentrate to be mixed with distilled water (Defense 929).  Dynaflux Lubricist additive lubricates the pump and inhibits algae growth. It is recommended when units are used in conditions where freezing is not a possibility.  One 4 oz. bottle is mixed with 3 gallons of distilled water.

The Penteck brand cartridge style water filter provides protection from particulate build up in power supply and coil water paths. Recommended for use with all recirculators. Filtration to 5 microns. The clear filter allows the user to easily inspect the water condition. The filter assembly is shipped with one replacement cartridge filter, mounting brackets and fittings for hook up between power supply and recirculator.

DEFENSE RTU PART #6410, $15.00/gallon                    FILTER ASSY. Part #7860, $72.00/ ea.  DEFENSE 929 PART #6412, $32.00/ gallon                   CARTRIDGE  PART# 7862, $14.00/ea.   LUBRICIST PART #6414, $7.00/ 4 fl oz