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 VSG50 Temperature Reducing Pre-Vessel 13.2 Gal Solar Expansion Tank, Two 3/4'' NPT
    MSRP: $369.84
    $220.64
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  • Zilmet ZHP200IL 13.2 Gal In-Line No Base 1'' NPT Connection Well Tank
    MSRP: $1,091.84
    $217.46
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  • Zilmet ZHT50F 13.2 Gal Hydronic Tank 3/4'' NPT With Feet
    MSRP: $482.58
    $195.57
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  • Zilmet VSG35 Temperature Reducing Pre-Vessel 9.2 Gal Solar Expansion Tank, Two 3/4'' NPT
    MSRP: $306.44
    $185.60
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  • Zilmet ZHT50-90 13.2 Gal Hydronic Tank 3/4'' NPT Connection
    MSRP: $387.66
    $175.99
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  • Zilmet ZSP24 6.6 Gal Solar Plus Tank 3/4'' NPT Connection
    MSRP: $264.76
    $159.26
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  • Zilmet ZHT35F 9.2 Gal Hydronic Tank 3/4'' NPT Connection
    MSRP: $429.50
    $158.08
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  • Zilmet ZS2 0.53 Gal Stainless Steel Tank 1/2'' NPT Connection
    MSRP: $327.50
    $149.69
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  • Zilmet ZHT35 9.2 Gal Hydronic Tank 3/4'' NPT Connection
    MSRP: $353.06
    $145.40
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  • Zilmet ZSP18 4.8 Gal Solar Plus Tank 3/4'' NPT Connection
    MSRP: $232.48
    $142.45
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  • Zilmet ZS1 0.26 Gal Stainless Steel Tank 1/2'' NPT Connection
    MSRP: $294.80
    $132.64
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  • Zilmet VSG18 Temperature Reducing Pre-Vessel 4.8 Gal Solar Expansion Tank, Two 3/4'' NPT
    MSRP: $212.40
    $128.45
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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.