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.

78 products
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  • Zilmet VSG8 Temperature Reducing Pre-Vessel 2.1 Gal Solar Expansion Tank, Two 3/4'' NPT

    Zilmet

    Zilmet VSG8 Temperature Reducing Pre-Vessel 2.1 Gal Solar Expansion Tank, Two 3/4'' NPT

    • SKU #: ZILVSG8
    • MPN #:
    MSRP: $156.16
    $94.67
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  • Zilmet VSG5 Temperature Reducing Pre-Vessel 1.3 Gal Solar Expansion Tank, Two 3/4'' NPT

    Zilmet

    Zilmet VSG5 Temperature Reducing Pre-Vessel 1.3 Gal Solar Expansion Tank, Two 3/4'' NPT

    • SKU #: ZILVSG5
    • MPN #:
    MSRP: $148.40
    $88.90
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    Project pricing at Plumbing-Deals is tailored to meet your specific project. The size of a plumbing job that qualifies as a project can vary, generally its larger than a single bathroom or kitchen remodel. By submitting the form or calling, you're taking the first step towards receiving a customized quote that considers your project's scope, timeline, and budget, ensuring a seamless and cost-effective solution for your plumbing parts and supplies.

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  • Zilmet ZS160 0.04 Gal Stainless Steel Tank 1/4'' NPT Connection

    Zilmet

    Zilmet ZS160 0.04 Gal Stainless Steel Tank 1/4'' NPT Connection

    • SKU #: ZILZS160
    • MPN #:
    MSRP: $182.76
    $85.87
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    Project pricing at Plumbing-Deals is tailored to meet your specific project. The size of a plumbing job that qualifies as a project can vary, generally its larger than a single bathroom or kitchen remodel. By submitting the form or calling, you're taking the first step towards receiving a customized quote that considers your project's scope, timeline, and budget, ensuring a seamless and cost-effective solution for your plumbing parts and supplies.

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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

    Zilmet ZHT18-30 4.8 Gal Capacity Cal Pro ZHT18-30 Hydronic Expansion Tank, 1/2 in Connection, NPT Connection, Carbon Steel

    • SKU #: ZILZHT1830
    • MPN #:
    MSRP: $157.50
    $74.30
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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

    Zilmet ZHT8-15 2.1 Gal Cal Pro ZHT8-15 Hydronic Expansion Tank, 1/2 in Connection, NPT Connection, Carbon Steel, Gray

    • SKU #: ZILZHT815
    • MPN #:
    $53.00
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  • Zilmet ZEP1 ZEP1 Expansion Tank and Shock Arrester, Butyl/304 Stainless Steel, MNPT Connection

    Zilmet

    Zilmet ZEP1 ZEP1 Expansion Tank and Shock Arrester, Butyl/304 Stainless Steel, MNPT Connection

    • SKU #: ZILZEP1
    • MPN #:
    MSRP: $256.00
    $43.37
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    Project pricing at Plumbing-Deals is tailored to meet your specific project. The size of a plumbing job that qualifies as a project can vary, generally its larger than a single bathroom or kitchen remodel. By submitting the form or calling, you're taking the first step towards receiving a customized quote that considers your project's scope, timeline, and budget, ensuring a seamless and cost-effective solution for your plumbing parts and supplies.

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  • Watts 0067370 PLT-5 Potable Water Expansion Tank, 2.1 Gallon Tank

    Watts

    Watts 0067370 PLT-5 Potable Water Expansion Tank, 2.1 Gallon Tank

    • SKU #: WAT0067370
    • MPN #:
    MSRP: $147.00
    $66.98
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  • Watts 0067371 PLT-12 Potable Water Expansion Tank, 4.5 Gallon Tank

    Watts

    Watts 0067371 PLT-12 Potable Water Expansion Tank, 4.5 Gallon Tank

    • SKU #: WAT0067371
    • MPN #:
    MSRP: $207.00
    $110.80
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  • Zilmet ZS18 4.8 gal in-line: Stainless steel expansion tank with 3/4": Stainless steel NPT connection

    Zilmet

    Zilmet ZS18 4.8 gal in-line: Stainless steel expansion tank with 3/4": Stainless steel NPT connection

    • SKU #: ZILZS18
    • MPN #:
    MSRP: $960.68
    $427.91
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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

    Zilmet ZFT8R 2.1 gal flat rectangular hydronic tank with 1/2" NPT connection, union (two-way check valve), and welded bracket

    • SKU #: ZILZFT8R
    • MPN #:
    MSRP: $269.28
    $118.92
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    Project pricing at Plumbing-Deals is tailored to meet your specific project. The size of a plumbing job that qualifies as a project can vary, generally its larger than a single bathroom or kitchen remodel. By submitting the form or calling, you're taking the first step towards receiving a customized quote that considers your project's scope, timeline, and budget, ensuring a seamless and cost-effective solution for your plumbing parts and supplies.

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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

    Zilmet

    Zilmet ZFT8C 2.1 gal flat round hydronic tank with 1/2" NPT connection, union (two-way check valve), and welded bracket

    • SKU #: ZILZFT8C
    • MPN #:
    MSRP: $243.58
    $125.84
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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

    Zilmet ZFT24R 6.3 gal flat rectangular hydronic tank with 1/2" NPT connection, union (two-way check valve), and welded bracket

    • SKU #: ZILZFT24R
    • MPN #:
    MSRP: $560.48
    $213.59
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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.

Trending Products

InSinkErator HWT-F1000S Instant Hot Water Tank and Filtration System: Stainless Steel (44723)

InSinkErator

InSinkErator HWT-F1000S Instant Hot Water Tank and Filtration System: Stainless Steel (44723)

  • SKU #: INSHWTF1000S
  • MPN #:
MSRP: $601.90
$399.99
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Project pricing at Plumbing-Deals is tailored to meet your specific project. The size of a plumbing job that qualifies as a project can vary, generally its larger than a single bathroom or kitchen remodel. By submitting the form or calling, you're taking the first step towards receiving a customized quote that considers your project's scope, timeline, and budget, ensuring a seamless and cost-effective solution for your plumbing parts and supplies.

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Delta Trinsic T4759-BLFL Single Handle Floor Mount Tub Filler Trim with Hand Shower - Single Handle Lever: Matte Black

Delta

Delta Trinsic T4759-BLFL Single Handle Floor Mount Tub Filler Trim with Hand Shower - Single Handle Lever: Matte Black

  • SKU #: DELT4759BLFL
  • MPN #:
MSRP: $2,056.35
$1,439.45
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Project pricing at Plumbing-Deals is tailored to meet your specific project. The size of a plumbing job that qualifies as a project can vary, generally its larger than a single bathroom or kitchen remodel. By submitting the form or calling, you're taking the first step towards receiving a customized quote that considers your project's scope, timeline, and budget, ensuring a seamless and cost-effective solution for your plumbing parts and supplies.

Ready to get started? Call us at 888-682-5956, and let's make your plumbing project a success!

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Zoeller M53 Mighty-Mate 53-0001 Cast Iron Sump Pump, Automatic

Zoeller Pumps

Zoeller M53 Mighty-Mate 53-0001 Cast Iron Sump Pump, Automatic

  • SKU #: ZOE53-0001
  • MPN #:
MSRP: $295.00
$250.08
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Project pricing at Plumbing-Deals is tailored to meet your specific project. The size of a plumbing job that qualifies as a project can vary, generally its larger than a single bathroom or kitchen remodel. By submitting the form or calling, you're taking the first step towards receiving a customized quote that considers your project's scope, timeline, and budget, ensuring a seamless and cost-effective solution for your plumbing parts and supplies.

Ready to get started? Call us at 888-682-5956, and let's make your plumbing project a success!

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Watts 0388015 800M4FR 1" Freeze Resistant Pressure Vacuum Breaker

Watts

Watts 0388015 800M4FR 1" Freeze Resistant Pressure Vacuum Breaker

  • SKU #: WATT0388015
  • MPN #:
MSRP: $487.50
$188.85
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Project pricing at Plumbing-Deals is tailored to meet your specific project. The size of a plumbing job that qualifies as a project can vary, generally its larger than a single bathroom or kitchen remodel. By submitting the form or calling, you're taking the first step towards receiving a customized quote that considers your project's scope, timeline, and budget, ensuring a seamless and cost-effective solution for your plumbing parts and supplies.

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TOTO MW4424736CEFG#01 WASHLET+ Nexus Two-Piece Elongated 1.28 GPF Toilet with S7A Contemporary Bidet Seat in Cotton White

Toto

TOTO MW4424736CEFG#01 WASHLET+ Nexus Two-Piece Elongated 1.28 GPF Toilet with S7A Contemporary Bidet Seat in Cotton White

  • SKU #: TOTMW4424736CEFG-01
  • MPN #:
MSRP: $3,024.00
$2,117.00
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Project pricing at Plumbing-Deals is tailored to meet your specific project. The size of a plumbing job that qualifies as a project can vary, generally its larger than a single bathroom or kitchen remodel. By submitting the form or calling, you're taking the first step towards receiving a customized quote that considers your project's scope, timeline, and budget, ensuring a seamless and cost-effective solution for your plumbing parts and supplies.

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TOTO C5 Washlet+ Ready Electronic Bidet Toilet Seat With Premist And Ewater+ Wand Cleaning, Elongated, Cotton White

Toto

TOTO C5 Washlet+ Ready Electronic Bidet Toilet Seat With Premist And Ewater+ Wand Cleaning, Elongated, Cotton White

  • SKU #: TOTSW3084T40-01
  • MPN #:
MSRP: $848.00
$594.00
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Project pricing at Plumbing-Deals is tailored to meet your specific project. The size of a plumbing job that qualifies as a project can vary, generally its larger than a single bathroom or kitchen remodel. By submitting the form or calling, you're taking the first step towards receiving a customized quote that considers your project's scope, timeline, and budget, ensuring a seamless and cost-effective solution for your plumbing parts and supplies.

Ready to get started? Call us at 888-682-5956, and let's make your plumbing project a success!

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