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 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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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.