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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
    (21)
    $211.99 each
    425
    Wed, Aug 26
    425
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    425 Wed, Aug 26
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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)
    $225.99 each
    350
    Wed, Aug 26
    416
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    350 Wed, Aug 26
    66 Thu, Aug 27 – Fri, Aug 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
    (6)
    $225.99 each
    248
    Wed, Aug 26
    284
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    248 Wed, Aug 26
    36 Thu, Aug 27 – Fri, Aug 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)
    $631.99 each
    55
    Wed, Aug 26
    55
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    55 Wed, Aug 26
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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
    $6.89 each
    171
    Wed, Aug 26
    171
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    171 Wed, Aug 26
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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
    (12)
    $81.99 each
    42
    Wed, Aug 26
    42
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    42 Wed, Aug 26
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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
    $4.99 each
      Box Up & Save 6%  
    $46.90 box of 10
    $4.69 each
    56
    Wed, Aug 26
    56
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    56 Wed, Aug 26
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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
    50
    Wed, Aug 26
    50
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    50 Wed, Aug 26
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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)
    $224.99 each
    186
    Wed, Aug 26
    186
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    186 Wed, Aug 26
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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
    39
    Wed, Aug 26
    39
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    39 Wed, Aug 26
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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
    $767.99 each
    47
    Wed, Aug 26
    47
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    47 Wed, Aug 26
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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
    69
    Wed, Aug 26
    69
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    69 Wed, Aug 26
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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
    $8.99 each
    27
    Wed, Aug 26
    27
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    27 Wed, Aug 26
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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
    60
    Wed, Aug 26
    60
    QtyArrives
    60 Wed, Aug 26
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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
    $9.29 each
    42
    Wed, Aug 26
    42
    QtyArrives
    42 Wed, Aug 26
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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
    Wed, Aug 26
    19
    QtyArrives
    19 Wed, Aug 26
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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
    24
    Wed, Aug 26
    24
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    24 Wed, Aug 26
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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
    17
    Wed, Aug 26
    17
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    17 Wed, Aug 26
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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
    $4.89 each
    18
    Wed, Aug 26
    18
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    18 Wed, Aug 26
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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
    18
    Wed, Aug 26
    18
    QtyArrives
    18 Wed, Aug 26
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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
    19
    Wed, Aug 26
    19
    QtyArrives
    19 Wed, Aug 26
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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
    18
    Wed, Aug 26
    18
    QtyArrives
    18 Wed, Aug 26
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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
    $11.19 each
    15
    Wed, Aug 26
    15
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    15 Wed, Aug 26
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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
    17
    Wed, Aug 26
    17
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    17 Wed, Aug 26
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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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