Expansion Tanks

Discover a range of expansion tanks designed to fit your specific water heater needs, ensuring optimal performance and efficiency. We carry the highest quality brands at the most affordable prices available.

129 products
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  • Zilmet ZHP350 105.7 Gal Vertical With Base 1-1/4'' NPT Connection Well Tank
    MSRP: $6,020.00
    $1,421.55
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  • Zilmet ZS60H 15.9 Gal Horizontal Stainless Steel Tank 1'' NPT Connection
    MSRP: $3,067.56
    $1,336.12
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  • Zilmet ZS60V 15.9 Gal Vertical Stainless Steel Tank 1'' NPT Connection
    MSRP: $3,030.36
    $1,326.55
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  • Zilmet ZSP200 52.8 Gal Solar Plus Tank 1'' NPT Connection
    MSRP: $1,740.74
    $1,167.54
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  • Zilmet ZHP302 ZHP302 Well Tank, 79.3 Gal Tank, 1-1/4 in Connection, NPT Connection
    MSRP: $4,460.80
    $1,122.61
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  • Zilmet ZHT300 79.3 Gal Hydronic Tank 3/4'' NPT Connection
    MSRP: $2,225.24
    $1,128.60
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  • Zilmet ZHP251 Hydro-Plus Thermal Expansion Tank, 66 Gal Capacity, 1-1/4 in Connection, Carbon Steel, Epoxy, Almond
    MSRP: $3,552.32
    $978.63
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  • Zilmet ZHT250 66 Gal Hydronic Tank 3/4'' NPT Connection
    MSRP: $1,739.38
    $914.26
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  • Zilmet ZSP150 39.6 Gal Solar Plus Tank 1'' NPT Connection
    MSRP: $1,303.70
    $701.80
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  • Zilmet ZS24H 6.3 Gal Horizontal Stainless Steel Tank 1'' NPT Connection
    MSRP: $1,552.14
    $681.91
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  • Zilmet ZS24V 6.3 Gal Vertical Stainless Steel Tank 1'' NPT Connection
    MSRP: $1,439.70
    $630.85
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  • Zilmet ZHT200 52.8 Gal Hydronic Tank 3/4'' NPT Connection
    MSRP: $1,497.46
    $554.79
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Increase Your Water Heater Efficiency

Whether you're upgrading your water heater or replacing an old hydronic tank, Plumbing Deals has the solutions you need. Our handpicked expansion tanks combine quality, efficiency, and affordability, ensuring that your water heater operates at its best. Our selection includes hydronic, vertical, horizontal, and floor mounted tanks.

Let's make your water heater's performance exceptional! Dive into our expansion tank selection, seize fantastic deals, and let our products keep your water heater efficient, your comfort levels high, and your budget intact. Start browsing our categories now, and let's make every shower, bath, and chore a satisfying and efficient experience.