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NDS Class C load rating when properly installed
Crafted from durable woven polypropylene yarns
bleed screw O-ring
ZB415E-3NL
Watts ETSX-30 - Part of the ETX Series Z100F-3NH NDS Class C load ratingThis non potable water expansion tank is designed for use in commercial and residential closed loop hydronic heating system piping to control the thermal expansion of hot water and maintain system pressure below the relief setting of the relief valve. This carbon steel tank is pre charged at 12 psi, tank volume is 15. 0 gallons and features a durable expansion membrane that prevents contact of the water with the air in the tank. This rugged butyl
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