this is the official replacement for the 47-21711-06 and is widely used across Rheem and Ruud gas furnace platforms as long as the 3-inch insertion depth and temperature ratings match your original specifications

With power disconnected

including many QMark and Berko series heaters

Durable Brass Construction: High-grade machining resists corrosion and maintains orifice integrity under constant thermal cycling

Utilizing authentic boiler repair parts like the 590-317-610 ensures compatibility with the existing flange geometry

Mueller W40313 5/16" Tee this is the official replacementMueller W40313 5 16 x 5 16 x 5 16 Copper CxCxC Tee