MCDONNELL & MILLER

Sidebar

Brand

Product type

Availability

Price

$
to
$
Filter
  • 10
  • 15
  • 20
  • 25
  • 30
  • 50
  • Featured
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
Sort

Sort by:

  • Featured
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
  • McDonnell and Miller 847-26 Head Gasket 21847851 335400 ReplacementMcDonnell and Miller 847-26 Head Gasket 21847851 335400 Replacement
    MCDONNELL & MILLER
    McDonnell and Miller 847-26 Head Gasket 21847851 335400 Replacement
    SKU: 847-26
    Product DescriptionThe McDonnell & Miller 847-26 Head Gasket is a vital component for engine maintenance. It ensures a secure seal between the cylinder head and the engine block, preventing leaks of combustion gases, oil, and coolant. Crafted from high-quality materials, this head gasket stands...
    $20.89
    $20.89
  • ITT McDonnell Miller 7B Potentiometer Switch Proportional Signal 110800ITT McDonnell Miller 7B Potentiometer Switch Proportional Signal 110800
    MCDONNELL & MILLER
    ITT McDonnell Miller 7B Potentiometer Switch Proportional Signal 110800
    SKU: 7B
    Product DescriptionThe ITT McDonnell Miller 7B Potentiometer Switch 110800 is designed for industrial and commercial uses. It provides precision control and measurement for various systems. Durable construction for longevity Accurate and reliable measurements Compact design for easy installation Product HighlightsThe ITT McDonnell Miller 7B...
    $1,987.99
    $1,987.99
  • MCDONNELL & MILLER 69 Built In LWCO 4-1/8 inch Insertion 153900MCDONNELL & MILLER 69 Built In LWCO 4-1/8 inch Insertion 153900
    MCDONNELL & MILLER
    MCDONNELL & MILLER 69 Built In LWCO 4-1/8 inch Insertion 153900
    SKU: 69
    Product DescriptionThe McDonnell & Miller 69 is a reliable low water cut-off steam boiler, designed to enhance boiler safety and efficiency. Engineered to automatically cut off the boiler water supply when water levels are too low, it's essential for preventing boiler tube damage due...
    $483.27
    $483.27
  • McDonnell & Miller 64 Low Water Cut-Off 1inMcDonnell & Miller 64 Low Water Cut-Off 1in
    MCDONNELL & MILLER
    McDonnell & Miller 64 Low Water Cut-Off 1in
    SKU: 64
    Product DescriptionThe McDonnell & Miller 64 Low Water Cut-Off, MPN 64, ensures the safe operation of your hot water system. This device, designed for HVAC applications, helps in preventing the boiler from operating on low water levels, which could cause severe damage to the...
    $655.28
    $655.28
  • Mcdonnell & Miller 63 Low Water Cut-Off 120/240 VAC 50 PSI Replacement 63Mcdonnell & Miller 63 Low Water Cut-Off 120/240 VAC 50 PSI Replacement 63
    MCDONNELL & MILLER
    Mcdonnell & Miller 63 Low Water Cut-Off 120/240 VAC 50 PSI Replacement 63
    SKU: 63
    Product DescriptionThe McDonnell & Miller model 63 is a robust mechanical low water cut-off designed for hot water boilers. Engineered for reliability and safety, it operates at a voltage rating of 120/240 VAC, ensuring your boiler system maintains proper water levels. Heavy-duty mechanical control...
    $728.07
    $728.07
  • Mcdonnell & Miller 51S-2 Mechanical Water Feeder High Cap. W/Cutoff 135900Mcdonnell & Miller 51S-2 Mechanical Water Feeder High Cap. W/Cutoff 135900
    MCDONNELL & MILLER
    Mcdonnell & Miller 51S-2 Mechanical Water Feeder High Cap. W/Cutoff 135900
    SKU: 51S-2
    Product DescriptionMcdonnell & Miller 51S-2 Mechanical Water Feeder provides a continuous water supply to boilers and steam generators. Designed for high-capacity and uninterrupted water flow, it is robust and suitable for demanding industrial applications. High-capacity mechanical water feeder Prevents overfilling with cutoff mechanism Durable...
    $1,895.30
    $1,895.30
  • Mcdonnell & Miller 51S-114 Seat 316200Mcdonnell & Miller 51S-114 Seat 316200
    MCDONNELL & MILLER
    Mcdonnell & Miller 51S-114 Seat 316200
    SKU: 51S-114
    Product DescriptionThe McDonnell & Miller 51S-114 Seat 316200 is a crucial component for industrial machinery. This seat, designed by McDonnell & Miller, ensures reliable performance in various applications. Easy installation Durable construction Reliable performance Product HighlightsThis seat enhances equipment longevity and reliability, making it...
    $113.04
    $113.04
  • Xylem-McDonnell & Miller 51-S HI CAP Feeder 1 35# #135600Xylem-McDonnell & Miller 51-S HI CAP Feeder 1 35# #135600
    MCDONNELL & MILLER
    Xylem-McDonnell & Miller 51-S HI CAP Feeder 1 35# #135600
    SKU: 51S
    Product DescriptionThe Xylem-McDonnell & Miller 51-S HI CAP Feeder 1 35# #135600 is a high-capacity feeder designed for industrial use. It ensures reliable and efficient feeding of liquids or solids. High-capacity design Durable construction Compact size for small spaces Product HighlightsThis feeder is constructed...
    $1,874.98
    $1,874.98
  • Mcdonnell & Miller 51-HD Mechanism Head -51Mcdonnell & Miller 51-HD Mechanism Head -51
    MCDONNELL & MILLER
    Mcdonnell & Miller 51-HD Mechanism Head -51
    SKU: 51HD
    Product DescriptionThe McDonnell & Miller 51-HD Mechanism Head is designed for reliable operation in HVAC systems. This component is essential for maintaining proper liquid levels. It fits with various applications for optimal performance. Compatible with models #51 and #134900 Constructed for durability Lightweight design...
    $1,276.06
    $1,276.06
  • McDonnell & Miller 51-2-HD Head Assembly for 51-2 Feeder/LWCO
    MCDONNELL & MILLER
    McDonnell & Miller 51-2-HD Head Assembly for 51-2 Feeder/LWCO
    SKU: 51-2-HD
    Product DescriptionThe McDonnell & Miller 51-2-HD Head Assembly is a replacement part specifically designed for 51-2 Feeders and LWCO systems. Ideal for industrial applications, this head assembly ensures reliable performance and durability. OEM-specified replacement part Constructed for extended durability Easy to install reduces downtime...
    $1,437.19
    $1,437.19
  • 51-2McDonnell & Miller 51-2 Combo Feeder/LWCO with #2 Switch
    MCDONNELL & MILLER
    McDonnell & Miller 51-2 Combo Feeder/LWCO with #2 Switch
    SKU: 51-2
    Combo Feeder/Lwco Has #2 Switch 135000
    $1,711.82
    $1,711.82
  • McDonnell & Miller 51 Mech Feeder For Steam/Hot Water 134700
    MCDONNELL & MILLER
    McDonnell & Miller 51 Mech Feeder For Steam/Hot Water 134700
    SKU: 51
    Product Description The McDonnell & Miller 51 Mech Feeder is an essential component for steam and hot water systems. Designed for use with boilers, this feeder ensures efficient and reliable operation. Compatible with steam and hot water systems Ensures efficient boiler operation Mfr No:...
    $1,660.07
    $1,660.07
  • McDonnell & Miller 310452 Cartridge Strainer Kit for 51, 851 Water FeederMcDonnell & Miller 310452 Cartridge Strainer Kit for 51, 851 Water Feeder
    MCDONNELL & MILLER
    McDonnell & Miller 310452 Cartridge Strainer Kit for 51, 851 Water Feeder
    SKU: 310452
    Product DescriptionThe McDonnell & Miller Cartridge Strainer Kit 310452 is essential for maintaining water feeders. This kit is compatible with models 51, 551-S, and 851, ensuring equipment longevity and efficient operation. Easy installation for quick maintenance Durable design for long-term use Prevents impurities from...
    $297.52
    $297.52
  • McDonnell & Miller 2M Switch Manual Reset-47-51McDonnell & Miller 2M Switch Manual Reset-47-51
    MCDONNELL & MILLER
    McDonnell & Miller 2M Switch Manual Reset-47-51
    SKU: 2M
    Product DescriptionThe McDonnell & Miller 2M switch, with manual reset, is a reliable component used in various industrial applications. Known for its quality, the 2M switch supports the safety and efficiency of equipment by offering manual reset functionality. Manual reset mechanism Compact design Durable...
    $224.09
    $224.09
  • MCDONNELL & MILLER
    Xylem-McDonnell & Miller 25A Makeup Feeder 35 Pounds #126800
    SKU: 25A
    Product DescriptionThe Xylem-McDonnell & Miller 25A Makeup Feeder, 35 pounds #126800, is an essential water treatment device for industrial applications. This feeder is designed to optimize water treatment processes by providing precise control over makeup water. Ensures reliable water treatment Features a compact and...
    $1,332.83
    $1,332.83
  • MCDONNELL & MILLER 247-2 Mechanical Water Feeder/Low Water Cutoff w/#2 Switch 133800 Replacement 247-2MCDONNELL & MILLER 247-2 Mechanical Water Feeder/Low Water Cutoff w/#2 Switch 133800 Replacement 247-2
    MCDONNELL & MILLER
    MCDONNELL & MILLER 247-2 Mechanical Water Feeder/Low Water Cutoff w/#2 Switch 133800 Replacement 247-2
    SKU: 247-2
    Product DescriptionOptimize your heating and cooling systems with the robust MCDONNELL & MILLER 247-2, a dual-function mechanical water feeder and low water cutoff switch. This unit ensures efficient operation and safety of boilers by managing water intake and preventing low water conditions. Easy integration...
    $1,407.92
    $1,407.92
  • Mcdonnell & Miller 194 Combo Lwco Pump Control With 5 Switch 10 Bolt Holes 166600
    MCDONNELL & MILLER
    Mcdonnell & Miller 194 Combo Lwco Pump Control With 5 Switch 10 Bolt Holes 166600
    SKU: 194
    Product Description The Mcdonnell & Miller 194 Combo Lwco Pump Control W/#5 Switch is engineered by Xylem-McDonnell & Miller, a trusted name in HVAC control parts. The product, identified by the MPN 194, is designed for effective heating and cooling system management. Reliable LWCO...
    $2,864.57
    $2,864.57
  • McDonnell & Miller 193-7B Combo LWCO Pump Control W/#7B SwitchMcDonnell & Miller 193-7B Combo LWCO Pump Control W/#7B Switch
    MCDONNELL & MILLER
    McDonnell & Miller 193-7B Combo LWCO Pump Control W/#7B Switch
    SKU: 193-7B
    Product Description The McDonnell & Miller 193-7B Combo LWCO Pump Control W/#7B Switch is a key component for ensuring safe and reliable operation of steam boilers. Featuring advanced low water cut-off capabilities, this device helps protect against boiler burnout and other potential hazards. Low...
    $2,938.02
    $2,938.02
  • McDonnell & Miller 150S-M Low Water Cut-Off Snap Switch
    MCDONNELL & MILLER
    McDonnell & Miller 150S-M Low Water Cut-Off Snap Switch
    SKU: 150S-M
    Product DescriptionThe McDonnell & Miller 150S-M is a low-water cut-off device designed to protect boilers and other systems from water shortages. It features a snap switch (#172806), ensuring easy installation and maintenance. The 150S-M offers a reliable and economical solution for boiler safety and...
    $1,097.90
    $1,097.90
    $2,192.23
  • Mcdonnell & Miller FS4-15SS Stainless Steel Paddle Kit Includes 1, 2, 3, 6 PaddlesMcdonnell & Miller FS4-15SS Stainless Steel Paddle Kit Includes 1, 2, 3, 6 Paddles
    MCDONNELL & MILLER
    Mcdonnell & Miller FS4-15SS Stainless Steel Paddle Kit Includes 1, 2, 3, 6 Paddles
    SKU: FS4-15SS
    Product DescriptionThe Mcdonnell & Miller FS4-15SS Stainless Steel Paddle Kit offers a reliable solution for mixing and stirring various materials. Each kit includes four paddles in sizes 1 inch, 2 inches, 3 inches, and 6 inches, making it suitable for different volumes and viscosities....
    $34.73
    $34.73
    $45.43

About MCDONNELL & MILLER

McDonnell & Miller Low Water cut-offs are specially designed to protect steam and hot water boilers from the hazards of a low water condition. In operation they will interrupt the electrical current to the firing device, if the water in the system drops below the boiler manufacturer’s minimum safe water level. Our low water cut-offs also provide an additional circuit for a low water alarm, should you desire to install one, for additional protection.

Customer Support Image

Need Support?

Call Jack and His Team