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 ZHT18-30 4.8 Gal Capacity Cal Pro ZHT18-30 Hydronic Expansion Tank, 1/2 in Connection, NPT Connection, Carbon Steel
    MSRP: $170.10
    $84.63
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  • Zilmet ZHT8-15 2.1 Gal Cal Pro ZHT8-15 Hydronic Expansion Tank, 1/2 in Connection, NPT Connection, Carbon Steel, Gray
    MSRP: $136.08
    $66.08
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  • Zilmet ZEP1 Expansion Tank and Shock Arrester, Butyl/304 Stainless Steel, MNPT Connection
    MSRP: $256.00
    $46.99
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  • Watts 0067370 PLT-5 Potable Water Expansion Tank, 2.1 Gallon Tank
    MSRP: $244.50
    $92.41
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  • Zilmet 6.3 Gal Pro Hydronic Expansion Tank 1/2 in
    MSRP: $311.62
    $135.60
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  • Zilmet ZEP18 6.3 Gal Easy Pro Thermal Expansion Tank, 3/4 in Connection, NPT Connection, Carbon Steel, Almond
    MSRP: $564.48
    $121.81
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  • Zilmet ZEP18 6.3 Gal Easy Pro Thermal Expansion Tank, 3/4 in Connection, NPT Connection, Carbon Steel, Almond - 2 pack
    MSRP: $2,257.92
    $405.32
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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 Zilmet ZAF012MF 1/2'' MNPT X 1/2'' FNPT Activflo Solo
    MSRP: $1,180.26
    $265.24
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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 Zilmet ZAF012MF 1/2'' MNPT X 1/2'' FNPT Activflo Solo
    MSRP: $1,471.46
    $363.96
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  • Zilmet ZHT8-15 2.1 Gal Cal Pro ZHT8-15 Hydronic Expansion Tank, 1/2 in Connection, NPT Connection, Carbon Steel, Gray Zilmet ZAF012MF 1/2'' MNPT X 1/2'' FNPT Activflo Solo
    MSRP: $1,047.06
    $203.77
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  • Zilmet ZHT18-30 4.8 Gal Capacity Cal Pro ZHT18-30 Hydronic Expansion Tank, 1/2 in Connection, NPT Connection, Carbon Steel Zilmet ZAF012MF 1/2'' MNPT X 1/2'' FNPT Activflo Solo
    MSRP: $1,081.08
    $221.60
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  • Zilmet ZEP1 Expansion Tank and Shock Arrester, Butyl/304 Stainless Steel, MNPT Connection with ZAF012MF 1/2'' MNPT X 1/2'' FNPT Activflo Solo Water Conditioner
    MSRP: $1,166.98
    $187.33
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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.