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Ships within 48 hours · Estimated delivery Sep 20 - Sep 25
This product is restricted to the Lower 48 states
Skin oils can create hot spots on the ceramic-carbide surface
the regulator must be vented to the outside per local mechanical codes
it is widely utilized in large-scale boilers
while the internal 20-micron filtration pad prevents particulate matter from clogging expansion valves or capillary tubes
Robertshaw 780-790 HSI Module 30067439-890 This product is restricted toFor field techs dealing with intermittent ignition failures or flame sensing issues on gas fired heating systems, the Robertshaw 780 790 HSI Module provides a reliable, direct replacement solution. This hot surface ignition control is engineered to drop into tight control cabinets, serving as the primary replacement for the HS780 17NL 304A as well as the 104A and 108A variants. Operating on a standard 120V AC ignition system, the module features a