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  • WFE-24V, Uni-Match Universal Water Feeder<br>(24V) Product Image
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    WFE-24V, Uni-Match Universal Water Feeder (24V) 169550 WFE-24V, Uni-Match Universal Water Feeder (24V)
    SKU: 169550
    Brand: Mcdonnell & Miller
    (20)
    $211.99 each
    224
    Tue, Apr 14
    224
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    224 Tue, Apr 14
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  • Auto. Water Feeder 24V Product Image
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    Auto. Water Feeder 24V VXT-24V Auto. Water Feeder 24V
    SKU: VXT-24V
    Brand: Hydrolevel
    (10)
    $216.99 each
    200
    Tue, Apr 14
    260
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    200 Tue, Apr 14
    60 Thu, Apr 16 – Fri, Apr 17
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  • 47-2, Mechanical Water Feeder w/ LWCO Function Product Image
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    47-2, Mechanical Water Feeder w/ LWCO Function 132800 47-2, Mechanical Water Feeder w/ LWCO Function
    SKU: 132800
    Brand: Mcdonnell & Miller
    (8)
    $631.99 each
    69
    Tue, Apr 14
    69
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    69 Tue, Apr 14
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  • Auto. Water Feeder 120V Product Image
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    Auto. Water Feeder 120V VXT-120V Auto. Water Feeder 120V
    SKU: VXT-120V
    Brand: Hydrolevel
    (6)
    $216.99 each
    55
    Tue, Apr 14
    84
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    55 Tue, Apr 14
    29 Thu, Apr 16 – Fri, Apr 17
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  • 14-B, Blow Down Valve Ball Type for 47,247,67,70B Water Feeders Product Image
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    14-B, Blow Down Valve Ball Type for 47,247,67,70B Water Feeders 310447 14-B, Blow Down Valve Ball Type for 47,247,67,70B Water Feeders
    SKU: 310447
    Brand: Mcdonnell & Miller
    (10)
    $81.99 each
    56
    Tue, Apr 14
    56
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    56 Tue, Apr 14
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  • CO-12 Head Gasket for 42, 61, 63, 64, 65 Product Image
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    CO-12 Head Gasket for 42, 61, 63, 64, 65 302600 CO-12 Head Gasket for 42, 61, 63, 64, 65
    SKU: 302600
    Brand: Mcdonnell & Miller
    (1)
    $6.89 each
    363
    Tue, Apr 14
    363
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    363 Tue, Apr 14
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  • 101A-120V, Electric Water Feeder (120V) Product Image
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    101A-120V, Electric Water Feeder (120V) 169400 101A-120V, Electric Water Feeder (120V)
    SKU: 169400
    Brand: Mcdonnell & Miller
    (1)
    $295.99 each
    54
    Tue, Apr 14
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    54 Tue, Apr 14
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  • 37-39, Strainer or Blow Off Gasket for 47,53,67,70 Product Image
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    37-39, Strainer or Blow Off Gasket for 47,53,67,70 313200 37-39, Strainer or Blow Off Gasket for 47,53,67,70
    SKU: 313200
    Brand: Mcdonnell & Miller
    (3)
    $4.99 each
    97
    Tue, Apr 14
    97
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    97 Tue, Apr 14
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  • WFE-120V, Uni-Match Universal Water Feeder<br>(120V) Product Image
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    WFE-120V, Uni-Match Universal Water Feeder (120V) 169560 WFE-120V, Uni-Match Universal Water Feeder (120V)
    SKU: 169560
    Brand: Mcdonnell & Miller
    (4)
    $224.99 each
    78
    Tue, Apr 14
    78
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    78 Tue, Apr 14
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  • 51-2, Mechanical Water Feeder w/ LWCO Function Product Image
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    51-2, Mechanical Water Feeder w/ LWCO Function 135000 51-2, Mechanical Water Feeder w/ LWCO Function
    SKU: 135000
    Brand: Mcdonnell & Miller
    $779.99 each
    52
    Tue, Apr 14
    52
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    52 Tue, Apr 14
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  • SA101-38, Strainer Basket Assembly 47, 51, 101A Product Image
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    SA101-38, Strainer Basket Assembly 47, 51, 101A 347100 SA101-38, Strainer Basket Assembly 47, 51, 101A
    SKU: 347100
    Brand: Mcdonnell & Miller
    $38.99 each
    109
    Tue, Apr 14
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    109 Tue, Apr 14
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  • RS-1-BR-1, Single Level Remote Sensor Product Image
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    RS-1-BR-1, Single Level Remote Sensor 179524 RS-1-BR-1, Single Level Remote Sensor
    SKU: 179524
    Brand: Mcdonnell & Miller
    $139.99 each
    64
    Tue, Apr 14
    64
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    64 Tue, Apr 14
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  • 21, Make-Up Water Feeder Product Image
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    21, Make-Up Water Feeder 126400 21, Make-Up Water Feeder
    SKU: 126400
    Brand: Mcdonnell & Miller
    (2)
    $486.99 each
    27
    Tue, Apr 14
    27
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    27 Tue, Apr 14
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  • SA47-101-102, Cartridge and Strainer Assembly<br>for 47, 247, 847 Product Image
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    SA47-101-102, Cartridge and Strainer Assembly for 47, 247, 847 341600 SA47-101-102, Cartridge and Strainer Assembly for 47, 247, 847
    SKU: 341600
    Brand: Mcdonnell & Miller
    (5)
    $256.99 each
    33
    Tue, Apr 14
    33
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    33 Tue, Apr 14
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  • 37-26, Head Gasket for 47 Product Image
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    37-26, Head Gasket for 47 312700 37-26, Head Gasket for 47
    SKU: 312700
    Brand: Mcdonnell & Miller
    $9.29 each
    123
    Tue, Apr 14
    123
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    123 Tue, Apr 14
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  • 2M, Cutoff Switch w/ Man. Reset for M&M 47-2, 51-2 51S2, 63, and 247-2 Product Image
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    2M, Cutoff Switch w/ Man. Reset for M&M 47-2, 51-2 51S2, 63, and 247-2 110100 2M, Cutoff Switch w/ Man. Reset for M&M 47-2, 51-2 51S2, 63, and 247-2
    SKU: 110100
    Brand: Mcdonnell & Miller
    $111.99 each
    58
    Tue, Apr 14
    58
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    58 Tue, Apr 14
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  • 37-27, Valve Bracket Gasket for 51, 47, 247 Product Image
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    37-27, Valve Bracket Gasket for 51, 47, 247 312800 37-27, Valve Bracket Gasket for 51, 47, 247
    SKU: 312800
    Brand: Mcdonnell & Miller
    $4.89 each
    70
    Tue, Apr 14
    70
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    70 Tue, Apr 14
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  • 101A-24V, Electric Water Feeder (24V) Product Image
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    101A-24V, Electric Water Feeder (24V) 169500 101A-24V, Electric Water Feeder (24V)
    SKU: 169500
    Brand: Mcdonnell & Miller
    (4)
    $388.99 each
    19
    Tue, Apr 14
    19
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    19 Tue, Apr 14
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  • F-26, M35 Gasket for 221 25A, 51, 53, 3155 Product Image
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    F-26, M35 Gasket for 221 25A, 51, 53, 3155 304100 F-26, M35 Gasket for 221 25A, 51, 53, 3155
    SKU: 304100
    Brand: Mcdonnell & Miller
    $9.99 each
    104
    Tue, Apr 14
    104
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    104 Tue, Apr 14
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  • 25-A-HD, Head Assembly for 25-A Water Feeder Product Image
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    25-A-HD, Head Assembly for 25-A Water Feeder 127100 25-A-HD, Head Assembly for 25-A Water Feeder
    SKU: 127100
    Brand: Mcdonnell & Miller
    (1)
    $631.99 each
    19
    Tue, Apr 14
    19
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    19 Tue, Apr 14
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  • 25-A, Make-Up Water Feeder Product Image
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    25-A, Make-Up Water Feeder 126800 25-A, Make-Up Water Feeder
    SKU: 126800
    Brand: Mcdonnell & Miller
    (2)
    $669.99 each
    23
    Tue, Apr 14
    23
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    23 Tue, Apr 14
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  • SA67-2, Float & Bellow Assembly Product Image
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    SA67-2, Float & Bellow Assembly 344200 SA67-2, Float & Bellow Assembly
    SKU: 344200
    Brand: Mcdonnell & Miller
    (5)
    $102.99 each
    35
    Tue, Apr 14
    35
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    35 Tue, Apr 14
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  • 37-101, Tetraseal O-Ring for 21, 25A, 47, 51, 53, 101A Product Image
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    37-101, Tetraseal O-Ring for 21, 25A, 47, 51, 53, 101A 324435 37-101, Tetraseal O-Ring for 21, 25A, 47, 51, 53, 101A
    SKU: 324435
    Brand: Mcdonnell & Miller
    $11.19 each
    46
    Tue, Apr 14
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    46 Tue, Apr 14
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  • SA150-106R, Bellows Assembly for Series 42<br>150 & 157 Product Image
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    SA150-106R, Bellows Assembly for Series 42 150 & 157 347900 SA150-106R, Bellows Assembly for Series 42 150 & 157
    SKU: 347900
    Brand: Mcdonnell & Miller
    (1)
    $161.99 each
    26
    Tue, Apr 14
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    26 Tue, Apr 14
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FAQs, Manuals & Videos

Resources

Articles

  • Water feeders protect boilers by maintaining a safe water level. Low water cutoffs work in coordination with water feeders to detect the fluid level in hot water and steam boilers. If water level falls below the minimum safe operating level, the water feeder is initiated. Water feeders can be automatic (electric) or manually operated.

    Electric water feeders eliminate the need to manually add water to the boiler. These water feeders are used for low pressure steam boilers with a cold water feed. Electric water feeders detect fluid, expose leaks, and provide the necessary information needed to diagnose a problem.

    Mechanical water feeders are used for hot water and low pressure steam boilers with a cold water feed. Mechanical feeders contain a float which responds to the water level in a boiler. These units are quiet, durable and feature an isolated feed valve which minimizes lime and scale build-up.

    We offer a wide selection of McDonnell & Miller, Taco and Hydrolevel water feeders for protection of all types of boilers, ranging from small residential hot water boilers to large industrial steam units.

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