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    6.6-Gal. Steel Water Expansion Tank

    6.6-Gal. Steel Water Expansion Tank

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    Series ET Non-Potable Water Expansion Tanks are for use in commercial and residential closed loop hydronic heating system piping to control the thermal expansion of hot water and maintain system pressure below the relief setting of the relief valve.... more

    $73.51

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    2.1 gal. Pre-Pressurized Steel Water Expansion Tank

    2.1 gal. Pre-Pressurized Steel Water Expansion Tank

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    This expansion tank controls thermal expansion of water in open domestic hot water supply systems. It absorbs the increased volume of water generated by the hot water heating source. Its' pre-pressurized steel tank uses an expansion membrane to prevent... more

    $42.97

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    4.5 gal. Thermal Expansion Tank

    4.5 gal. Thermal Expansion Tank

    Used on gas, oil, or electric, direct-fired, residential water heater and hot water storage tank applications to absorb the increased volume of water created by thermal expansion. It also maintains balanced pressure throughout the water supply system by k more

    $59.88

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    2 gal. Thermal Expansion Tank, As Shown

    2 gal. Thermal Expansion Tank, As Shown

    Used on gas, oil, or electric, direct-fired, residential water heater and hot water storage tank applications to absorb the increased volume of water created by thermal expansion. It also maintains balanced pressure throughout the water supply system... more

    $42.84

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    Potable Water Expansion Tank for 50 gal. Water Heaters

    Potable Water Expansion Tank for 50 gal. Water Heaters

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    This expansion tank controls thermal expansion of water in open domestic hot water supply systems. It absorbs the increased volume of water generated by the hot water heating source. Its' pre-pressurized steel tank uses an expansion membrane to prevent... more

    $59.99

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    ProFlo PFXT5I Accessory ProFlo PFXT5I 2.1 Gallon Thermal Expansion Tank

    ProFlo PFXT5I Accessory ProFlo PFXT5I 2.1 Gallon Thermal Expansion Tank

    ProFlo PFXT5I 2.1 Gallon Thermal Expansion Tank more

    $76.43 $57.32

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    Thermal Expansion Tank With Male Pipe Thread

    Thermal Expansion Tank With Male Pipe Thread

    Diaphragm-type pre-pressurized expansion tank specifically designed for potable hot water systems. These tanks control water pressure build-up and eliminate relief valve spillage caused by thermal expansion when water is heated. 3/4 Male pipe thread... more

    $49.45 $42.42

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    Thermal Expansion Tank With Male Pipe Thread

    Thermal Expansion Tank With Male Pipe Thread

    Diaphragm-type pre-pressurized expansion tank specifically designed for potable hot water systems. These tanks control water pressure build-up and eliminate relief valve spillage caused by thermal expansion when water is heated. 3/4 Male pipe thread... more

    $63.19 $54.84

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    2 gal. Thermal Expansion Tank

    2 gal. Thermal Expansion Tank

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    Eastman thermal expansion tanks are designed to prevent backflow from residential water heaters. The tank is for 30 gal. to 160 gal. Maximum working pressure 150 psi and maximum operating temperature is 210°F. more

    $33.44

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    "Watts PLT-5 Potable Water Expansion Tank (0067370)"

    "Watts PLT-5 Potable Water Expansion Tank (0067370)"

    "Watts PLT-5 Potable Water Expansion Tank (0067370) Series PLT Potable Water Expansion Tanks are designed to absorb the increased volume of water created by thermal expansion and to maintain balanced pressure throughout the potable water supply system.... more

    $35.42

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    "Watts PLT-12 Potable Water Expansion Tank (0067371)"

    "Watts PLT-12 Potable Water Expansion Tank (0067371)"

    "Watts PLT-12 Potable Water Expansion Tank (0067371) Series PLT Potable Water Expansion Tanks are designed to absorb the increased volume of water created by thermal expansion and to maintain balanced pressure throughout the potable water supply... more

    $41.85

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    Thermal Expansion Tank, Flexcon, PH 25

    Thermal Expansion Tank, Flexcon, PH 25

    Expansion Tank, Thermal, Tank 9 Gal., Inline Tank Style, Precharge Pressure 40 PSI, Height 18 29/32 In., Dia. 12 1/2 In., Inlet/Outlet NPT 3/4 MNPT In., Max. Working Pressure 150 PSI, Agency Compliance NSF/IAPMO, Warranty Length 5 Years more

    $188.00

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    (50,000+)
    Thermal Expansion Tank, Flexcon, PH 12

    Thermal Expansion Tank, Flexcon, PH 12

    Expansion Tank, Thermal, Tank 4.8 Gal., Inline Tank Style, Precharge Pressure 40 PSI, Height 14 1/2 In., Dia. 11 In., Inlet/Outlet NPT 3/4 MNPT In., Max. Working Pressure 150 PSI, Agency Compliance NSF/IAPMO, Warranty Length 1 Year more

    $84.90

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    Therm-X-Span T-12 Thermal Expansion Tank 4.4 gal

    Therm-X-Span T-12 Thermal Expansion Tank 4.4 gal

    Therm-X-Span T-12 Thermal Expansion Tank 4.4 gal. Therm-X-Span T-12 Thermal Expansion Tank 4.4 gal Features: The Therm-X-Span T-12 Thermal Expansion Tank is a pre-pressurized diaphragm expansion tank. The tank is installed on the cold water supply line... more

    $49.99

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    Eastman 60022 Thermal Expansion Tank - 2.1 Gallons

    Eastman 60022 Thermal Expansion Tank - 2.1 Gallons

    Eastman 2.1 Gallon Thermal Expansion Tank for residetial water heaters. Low lead and NSF-61 compliant. Butyl Rubber Diaphragm Type Tank. more

    $52.95 $32.95

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    Amtrol Therm-X-Span T-5 Thermal Expansion Tank 2 Gallon

    Amtrol Therm-X-Span T-5 Thermal Expansion Tank 2 Gallon

    Amtrol Therm-X-Span T-5 Thermal Expansion Tank 2 Gallon. Amtrol Therm-X-Span T-5 Thermal Expansion Tank 2 Gallon The Amtrol Therm-X-Span T-5 2 Gallon Thermal Expansion Tank helps to control pressure build-up in closed potable water systems. The Amtrol... more

    $33.95

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    Kenmore 5 gal. Thermal Expansion Tank

    Kenmore 5 gal. Thermal Expansion Tank

    Protect Your Water Heater with the Kenmore 5 Gal. Thermal Expansion Tank Thermal expansion control is needed within home plumbing systems. When water heats up, it expands, and it needs to go somewhere. The Kenmore Thermal Expansion Tank is there for... more

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    $69.99 $46.48

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    Eastman 60023 Thermal Expansion Tank - 4.5 Gallons

    Eastman 60023 Thermal Expansion Tank - 4.5 Gallons

    Eastman 4.5 Gallon Thermal Expansion Tank for residetial water heaters. Low lead and NSF-61 compliant. Butyl Rubber Diaphragm Type Tank. more

    $64.95 $42.95

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    Watts Regulator PLT-5 Potable Water Expansion Tank

    Watts Regulator PLT-5 Potable Water Expansion Tank

    PermaSpan Expansion Tanks are designed specifically for the purpose of accomodating the natural expansion in a Hydronic Heating System. To eliminate the water logging that is troublesome but normal in a plain steel diaphragm tank, the air and water... more

    $31.49

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    WaterWorker G-12L Tank without Valve Water Heater Expansion Safety Tank, 4.4-Gallon Capacity, Green

    WaterWorker G-12L Tank without Valve Water Heater Expansion Safety Tank, 4.4-Gallon Capacity, Green

    WATER WORKER/AMTROL THERMAL EXPANSION SAFETY TANK Steel dome150 PSI max200 deg. F maxButyl diaphragm4.4 gal. capacity3/4 MPT connectionSize : 11 dia. x 15h40 PSI factory pre-chargeFlow catcher /check valveRigid NSF approvedpolypropylene linerReduces... more

    $52.33

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    "Bell & Gossett HVAC Expansion Tank HFT-60 1BN328"

    "Bell & Gossett HVAC Expansion Tank HFT-60 1BN328"

    "Bell & Gossett HVAC HFT-60 expansion tanks are designed to absorb the force of thermal expansion in hydronic heating systems. The Bell & Gossett Series HFT-60 1BN328 expansion tank is designed to absorb the force of thermal expansion of heating water... more

    $87.50

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    "Bell & Gossett HVAC Expansion Tank HFT-90 1BN329"

    "Bell & Gossett HVAC Expansion Tank HFT-90 1BN329"

    "Bell & Gossett HVAC HFT-90 expansion tanks are designed to absorb the force of thermal expansion in hydronic heating systems. The Bell & Gossett Series HFT-90 1BN329 expansion tank is designed to absorb the force of thermal expansion of heating water... more

    $139.00

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    Water Worker G12L Thermal Expansion Water Heater Safety Tank - 4.4 Gallon, As Shown

    Water Worker G12L Thermal Expansion Water Heater Safety Tank - 4.4 Gallon, As Shown

    Features 4.4 gallon. Thermal expansion water heater safety tank. Steel outer shell. Polypropylene lined water reservoir. Heavy duty butyl diaphragm that flexes. Leak proof precharged air chamber. Reduces pressure build up & harmful pressure spikes in... more

    $78.24

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    Water Worker G5L Thermal Expansion Safety Tank, 2 Gallon, As Shown

    Water Worker G5L Thermal Expansion Safety Tank, 2 Gallon, As Shown

    2 Gallon, Thermal Expansion Water Heater Safety Tank, Steel Outer Shell, Polypropylene Lined Water Reservoir, Heavy Duty Butyl Diaphragm That Flexes, Leak Proof Precharged Air Chamber, Reduces Pressure Build Up & Harmful Pressure Spikes, In Closed... more

    $45.56

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    4.5 gal. Thermal Expansion Tank

    4.5 gal. Thermal Expansion Tank

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    Eastman thermal expansion tanks are designed to prevent backflow from residential water heaters. The tank is for 30 gal. to 160 gal. Maximum working pressure 150 psi and maximum operating temperature is 210°F. more

    $48.31

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    18 l Lead-Free Potable Water Thermal Expansion Tank

    18 l Lead-Free Potable Water Thermal Expansion Tank

    Free Shipping on Over 500K Items!

    The XT Series is designed for installation on potable water lines between the backflow preventer or pressure reducing valve and the water heater to protect against water thermal expansion. When system pressure increases, water enters the tank’s... more

    $71.24

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    8 l Lead-Free Potable Water Thermal Expansion Tank

    8 l Lead-Free Potable Water Thermal Expansion Tank

    Free Shipping on Over 500K Items!

    The Zurn Wilkins XT Series is designed for installation on potable water lines between the backflow preventer or pressure reducing valve and the water heater to protect against water thermal expansion. When system pressure increases, water enters the... more

    $52.47

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    Pre-Charged Non-Potable Water Expansion Tank

    Pre-Charged Non-Potable Water Expansion Tank

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    With a maximum working pressure of 60 psi, the Watts ET15 Pre-Charged Non-Potable Water Expansion Tank is designed to absorb the increased volume of water created when a hot water boiler is heated. This pre-charged steel tank is easy to use and keeps... more

    $30.89

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    8.5 in. W x 11.5 in. D x 8.5 in. H Pre-Pressurized Steel Water Expansion Tank

    8.5 in. W x 11.5 in. D x 8.5 in. H Pre-Pressurized Steel Water Expansion Tank

    Free Shipping on Over 500K Items!

    You're sure to have hot water when you need it with the Watts Pre-Pressurized Steel Water Expansion Tank. Made from strong, durable steel, this tank can be used with gas, electric or oil heaters. An expansion membrane prevents air and water contact,... more

    $40.92

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    Flexcon PH 25 Expansion Tank, 18 29/32 H x 12 1/2 Dia, Silver

    Flexcon PH 25 Expansion Tank, 18 29/32 H x 12 1/2 Dia, Silver

    Flexcon Thermal Expansion Tank 8.5 GallonSKU: PH-25Product Features:Stainless steel water connection16-Guage solid steel tank100-percent pressure testedEliminate build up system pressureButyl diaphragm** Size: 9-Gallon. Color: Stainless steel. more

    $188.00

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    4.4 gal. Water Heater Expansion/Safety Tank, As Shown

    4.4 gal. Water Heater Expansion/Safety Tank, As Shown

    THERMAL EXPANSION SAFETY TANK Flow catcher /check valve Reduces chance of discharge from T&P valve Extends water heater life and efficiency Steel dome Rigid NSF approved polypropylene liner Butyl diaphragm 200 deg. F max. 150 PSI max. 40 PSI factory... more

    $57.73

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    Wmu 2.0 Gallon Expansion Tank

    Wmu 2.0 Gallon Expansion Tank

    Watts® 2.0 Gallon Potable Water Expansion Tank - Mfg #DET-5 more

    $474.90

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    Expansion Tank Mounting Bracket (Box of 15)

    Expansion Tank Mounting Bracket (Box of 15)

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    The Holdrite Quick Strap #QS-5-H secures water heater expansion tanks to the wall relieving weight loads off connection pipes. The galvanized steel straps install quickly and easily. The #QS-5 thermal expansion tank mounting bracket supports up to 2.5... more

    $209.99

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    4.4 Gal. Water Heater Expansion/Safety Tank

    4.4 Gal. Water Heater Expansion/Safety Tank

    Free Shipping on Over 500K Items!

    Thermal / hot water heater expansion tanks prevent hot water from back flowing into cold water line or from escaping through the pressure relief valve and onto the floor. Prevents constant fluctuations in water pressure that damage the heater and... more

    $57.73

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    Watts Water Technologies 261026Lf Water Pressure Reducing Valve 1 inch Sweat X 1 inch Fip Lead Free, As Shown

    Watts Water Technologies 261026Lf Water Pressure Reducing Valve 1 inch Sweat X 1 inch Fip Lead Free, As Shown

    About this item Adjusts from 25 to 75 lbs- Max- psi 300 lbs- Stainless steel integral strainer- By-pass feature controls build-up of system pressure and thermal expansion- Maximum temperature 180F- Renewable stainless steel seat- Meets requirements of... more

    $167.07

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    Watts Water Technologies 261025Lf Water Pressure Reducing Valve . 25 inch Sweat X . 25 inch Fip Lead Free, As Shown

    Watts Water Technologies 261025Lf Water Pressure Reducing Valve . 25 inch Sweat X . 25 inch Fip Lead Free, As Shown

    About this item Adjusts from 25 to 75 lbs- Max- psi 300 lbs- Stainless steel integral strainer- By-pass feature controls build-up of system pressure and thermal expansion- Maximum temperature 180F- Renewable stainless steel seat- Meets requirements of... more

    $133.25

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    Watts Water Technologies 261026Lf Water Pressure Reducing Valve 1 inch Sweat X 1 inch Fip Lead Free

    Watts Water Technologies 261026Lf Water Pressure Reducing Valve 1 inch Sweat X 1 inch Fip Lead Free

    Adjusts from 25 to 75 lbs- Max- psi 300 lbs- Stainless steel integral strainer- By-pass feature controls build-up of system pressure and thermal expansion- Maximum temperature 180F- Renewable stainless steel seat- Meets requirements of ANSI #A112-262,... more

    $215.33 $159.11

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    "Watts PLT-20 Potable Water Expansion Tank (0067372)"

    "Watts PLT-20 Potable Water Expansion Tank (0067372)"

    "Watts PLT-20 Potable Water Expansion Tank (0067372) Series PLT Potable Water Expansion Tanks are designed to absorb the increased volume of water created by thermal expansion and to maintain balanced pressure throughout the potable water supply... more

    $191.71

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    "Watts PLT-35 Potable Water Expansion Tank (0067373)"

    "Watts PLT-35 Potable Water Expansion Tank (0067373)"

    "Watts PLT-35 Potable Water Expansion Tank (0067373) Series PLT Potable Water Expansion Tanks are designed to absorb the increased volume of water created by thermal expansion and to maintain balanced pressure throughout the potable water supply... more

    $245.17

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    Flexcon Ph 5 Expansion Tank, 2.1 Gal, 11 39/64 H X 8 D

    Flexcon Ph 5 Expansion Tank, 2.1 Gal, 11 39/64 H X 8 D

    Expansion Tank, Thermal, Tank 2.1 Gal., Inline Tank Style, Precharge Pressure 40 PSI, Height 11 39/64 In., Dia. 8 In., Inlet/Outlet NPT 3/4 MNPT In., Max. Working Pressure 150 PSI, Agency Compliance NSF/IAPMO, Warranty Length 5 Years more

    $75.71

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    (50,000+)

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