Expansion Tanks

Discover a range of expansion tanks designed to fit your specific boiler needs, ensuring optimal performance and efficiency. We proudly carry the best brands on the market including Watts and Zilmet. Our handpicked expansion tanks combine quality and affordability, ensuring that your boiler system runs smoothly.

127 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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Premium Boiler for Maximum Comfort

Welcome to Plumbing Deals, your source for high-quality expansion tanks designed to enhance the efficiency and lifespan of your boiler system. We seamlessly blend affordability with top-tier quality. We carry some of the best performing names in the industry, including Watts and Zilmet. Whether you're a homeowner or a seasoned contractor, our carefully selected products are here to ensure your boiler operates at its best, without breaking the bank. Discover a range of expansion tanks designed to fit your specific boiler needs, ensuring optimal performance and efficiency.

Whether you're in the process of upgrading your existing boiler system, replacing outdated equipment, or embarking on a new project, Plumbing Deals is here to provide tailored solutions to meet your specific needs. Elevate your boiler's performance to exceptional levels with our wide array of products and expertise. Delve into our carefully curated expansion tank selection, where you can find not only quality products but also amazing deals that fit your requirements. Our goal is to ensure that your boiler operates efficiently, your comfort remains at optimal levels, and your budget stays intact. Explore our diverse categories today, and together, let's transform every heating season into a truly satisfying and efficient experience.