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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
    (27)
    $223.08 each
    125
    Thu, Jan 28
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    125 Thu, Jan 28
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  • VXT-24 Water Feeder - 24V Product Image
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    VXT-24 Water Feeder - 24V 45-026 VXT-24 Water Feeder - 24V
    SKU: 45-026
    Brand: Hydrolevel
    (10)
    $197.66 each
    197
    Thu, Jan 28
    197
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    197 Thu, Jan 28
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  • VXT-120 Water Feeder - 120V Product Image
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    VXT-120 Water Feeder - 120V 45-122 VXT-120 Water Feeder - 120V
    SKU: 45-122
    Brand: Hydrolevel
    (8)
    $209.28 each
    68
    Thu, Jan 28
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    68 Thu, Jan 28
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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)
    $667.75 each
    53
    Thu, Jan 28
    53
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    53 Thu, Jan 28
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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 302700 CO-12 Head Gasket for 42, 61, 63, 64, 65
    SKU: 302700
    Brand: Mcdonnell & Miller
    $5.98 each
    71
    Thu, Jan 28
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    71 Thu, Jan 28
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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
    (14)
    $84.73 each
    45
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    45 Thu, Jan 28
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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 313300 37-39, Strainer or Blow Off Gasket for 47,53,67,70
    SKU: 313300
    Brand: Mcdonnell & Miller
    $4.66 each
      Box Up & Save 4%  
    $44.60 box of 10
    $4.46 each
    111
    Thu, Jan 28
    111
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    111 Thu, Jan 28
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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)
    $294.99 each
    70
    Thu, Jan 28
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    70 Thu, Jan 28
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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
    (5)
    $223.08 each
    Wed, Feb 17 – Wed, Feb 24
    Arrives
    Wed, Feb 17 – Wed, Feb 24
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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
    $150.70 each
    20
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    20 Thu, Jan 28
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  • 51-2, Mechanical Water Feeder w/ #2 Switch (LWCO Function) Product Image
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    51-2, Mechanical Water Feeder w/ #2 Switch (LWCO Function) 135000 51-2, Mechanical Water Feeder w/ #2 Switch (LWCO Function)
    SKU: 135000
    Brand: Mcdonnell & Miller
    $767.94 each
    24
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    24 Thu, Jan 28
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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
    $38.00 each
    132
    Thu, Jan 28
    132
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    132 Thu, Jan 28
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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 304200 F-26, M35 Gasket for 221 25A, 51, 53, 3155
    SKU: 304200
    Brand: Mcdonnell & Miller
    $8.41 each
    47
    Thu, Jan 28
    47
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    47 Thu, Jan 28
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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
    $109.97 each
    54
    Thu, Jan 28
    54
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    54 Thu, Jan 28
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  • 37-26, Head Gasket for 47 Product Image
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    37-26, Head Gasket for 47 313800 37-26, Head Gasket for 47
    SKU: 313800
    Brand: Mcdonnell & Miller
    $8.65 each
    59
    Thu, Jan 28
    59
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    59 Thu, Jan 28
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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)
    $388.56 each
    30
    Thu, Jan 28
    30
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    30 Thu, Jan 28
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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)
    $340.82 each
    34
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    34
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    34 Thu, Jan 28
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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)
    $514.86 each
    22
    Thu, Jan 28
    22
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    22 Thu, Jan 28
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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 313900 37-27, Valve Bracket Gasket for 51, 47, 247
    SKU: 313900
    Brand: Mcdonnell & Miller
    $4.66 each
    28
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    28
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    28 Thu, Jan 28
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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)
    $118.23 each
    18
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    18
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    18 Thu, Jan 28
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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)
    $669.84 each
    8
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    8
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    8 Thu, Jan 28
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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)
    $677.28 each
    21
    Thu, Jan 28
    21
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    21 Thu, Jan 28
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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 324500 37-101, Tetraseal O-Ring for 21, 25A, 47, 51, 53, 101A
    SKU: 324500
    Brand: Mcdonnell & Miller
    $10.97 each
    28
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    28
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    28 Thu, Jan 28
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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)
    $179.52 each
    27
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    27 Thu, Jan 28
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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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