Universal design serves the widest variety of applications
• Replacement for common flow switches from johnson/penn, potter/taco, watts, hydrolevel and other manufacturers
• Two electrical knock-outs allows connection from either end
• Sensitivity adjusting screw makes flow adjustment easy
• Hardened stainless steel bearings minimize friction
• Sealed monel bellows
• Materials of construction suitable for corrosive liquids
• Includes: (4) 1, 2, 3 and 6" stainless steel paddles
  

  McDonnell & Miller B113-10

Eliminates necessity to manually add water to the boiler
• Can be used with mechanical or electronic low water cut-off controls
• Quick-change replaceable cartridge valve and strainer
• Manual feed butTon
• 40 VA transformer
  

  McDonnell & Miller B112-8

Xylem B109-5

Adjustable Bx outlet for easy installation
• Dual precision switches for dependable operation of cut-off, alarm or electric water feeder
• Packless bellows
• Millivolt circuits

McDonnell & Miller B106-4

Lockout delay
• Power interruption
• Self cleaning probe
• No lock out with loss of power if probe is in water
• Green LED indicates power on
• Red LED indicating low water condition
• 7000 ohm probe sensitivity
  

  McDonnell & Miller B103-17

Quick hook-up fittings provided
• Lever-operated, full port ball valve for easy blow down
• Adjustable Bx outlet for easy installation
• Dual precision switches for dependable operation of cut-off, alarm or electric water feeder
  

  McDonnell & Miller B103-1

McDonnell & Miller B115-1

McDonnell & Miller B120

McDonnell & Miller B115

McDonnell & Miller B122

Model SA47-101-102

McDonnell & Miller B123-1

McDonnell & Miller B122-4