Explore other gas heating products at Stockpile Express and find essential components for heating, ventilation, air conditioning, and refrigeration (HVAC/R) systems. Our collection includes ignition cables, ferrules, and orifices. Typically made in brass, an orifice controls how much gas flows into the system burners in residential or commercial applications. Use our convenient filters to narrow your search results by size, material, and end connection. Browse top-quality gas heating products from trusted makers Robertshaw and Honeywell to find the right fit for a gas-fired system.