Expansion Tanks

Upgrade your system with our top-of-the-line expansion tanks, built to ensure maximum efficiency and long-lasting performance for your water heater. Whether you're dealing with a thermal expansion tank, a pressure tank, or a bladder tank, we've got you covered with reliable solutions tailored to meet your specific needs.

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  • Zilmet ZEP12 4.8 gal In-line thermal expansion tank with 3/4" Stainless steel NPT connection
    MSRP: $384.40
    $80.18
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  • Watts 0067371 PLT-12 Potable Water Expansion Tank, 4.5 Gallon Tank
    MSRP: $286.00
    $152.80
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  • Zilmet ZFT8R 2.1 gal flat rectangular hydronic tank with 1/2" NPT connection, union (two-way check valve), and welded bracket
    MSRP: $269.28
    $118.92
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  • Zilmet ZFT8C 2.1 gal flat round hydronic tank with 1/2" NPT connection, union (two-way check valve), and welded bracket
    MSRP: $243.58
    $101.78
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  • Zilmet ZFT24R 6.3 gal flat rectangular hydronic tank with 1/2" NPT connection, union (two-way check valve), and welded bracket
    MSRP: $560.48
    $210.14
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  • Zilmet ZFT18R 4.8 gal flat rectangular hydronic tank with 1/2" NPT connection, union (two-way check valve), and welded bracket
    MSRP: $440.64
    $161.14
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  • Zilmet ZFT18C 4.8 gal flat round hydronic tank with 1/2" NPT connection, union (two-way check valve), and welded bracket
    MSRP: $279.48
    $112.57
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  • Zilmet ZEP5 2.1 gal In-line thermal expansion tank with 3/4" Stainless steel NPT connection
    MSRP: $302.40
    $53.50
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  • Zilmet ZHT105 27.7 Gal Cal Pro Hyrdronic Expansion Tank 3/4" NPT Connection
    MSRP: $949.88
    $369.74
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  • Zilmet ZHT150 39.6 Gal Hydronic Tank 3/4'' NPT Connection

    Zilmet

    Zilmet ZHT150 39.6 Gal Hydronic Tank 3/4'' NPT Connection

    • SKU #: ZILZHT150
    • MPN #:
    MSRP: $1,206.50
    $454.52
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  • Zilmet ZHT80 21.1 Gal Cal Pro Hydronic Expansion Tank 3/4" Connection
    MSRP: $611.36
    $246.69
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  • Zilmet ZHT50-90 13.2 Gal Hydronic Tank 3/4'' NPT Connection

    Zilmet

    Zilmet ZHT50-90 13.2 Gal Hydronic Tank 3/4'' NPT Connection

    • SKU #: ZILZHT5090
    • MPN #:
    MSRP: $387.66
    $175.99
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Maximize Water Heater Efficiency with Expansion Tanks

Did you know that adding an expansion tank to your water heater system can significantly improve its efficiency and extend its lifespan? When water heats up, it expands, creating extra pressure in your plumbing system.

Without the right solution, this pressure can strain your pipes, fixtures, and even your water heater itself. That’s where a thermal expansion tank or pressure tank comes in. These tanks absorb the excess water pressure, protecting your system and ensuring smoother operation. At Plumbing Deals, we offer a carefully curated selection of hydronic, bladder tank, vertical, horizontal, and floor-mounted tanks, tailored to meet a variety of system needs.

The Right Expansion Tank for Every Water Heater System

Choosing the right expansion tank isn’t just about compatibility—it’s about optimizing performance and comfort. For example, a bladder tank is ideal for systems that need precise pressure control, while hydronic and thermal expansion tanks are perfect for managing temperature changes in your water heating system.

Our range includes vertical, horizontal, and floor-mounted tanks, providing options that fit seamlessly into any setup. By investing in the right tank, you not only protect your water heater but also enhance energy efficiency, which can save you money in the long run.