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The Apollo Valves model 21-250-03 is a robust brass water gauge known for its dependable performance in monitoring water levels in various steam heating systems. Featuring a 1/2 inch MNPT rough bronze connection and a clear 12 inch glass display, this gauge ensures precise readings and long-term reliability.
This CRN registered water gauge is suitable for both commercial and residential boilers, supporting effective monitoring and maintenance.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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