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๐ฅ Keep your heat flowing, pressure controlled! ๐ฅ
The Watts ETX-30 is a 4.5-gallon carbon steel expansion tank designed for closed loop hydronic heating systems. Pre-charged at 12 psi and rated for up to 60 psi, it controls thermal expansion to prevent overpressure. Its durable epoxy finish and easy mounting with a 1/2" MNPT connection ensure reliable, long-lasting performance in both residential and commercial settings.









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