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Hydrolevel Safgard 550 Low Water Cut-Off, 120 VAC, 250 psi, Manual Reset
    Provides step-by-step, diagrammed instructions for fast, easy installation and wiring
  • Burner circuit locks-out if water remains below probe for 30 sec
  • Burner circuit test butTon allows for testing the control without lowering the water level and indicator lights for easy troubleshooting
  • SPDT switch contact

    Hydrolevel B112-3

Item#:
B112-3
Manufacturer Item:
45-550
Manufacturer:
HYDROLEVEL COMPANY
Mcdonnell & Miller GuardDog 751P-MT-120 Electronic Low Water Cut-Off, 120 VAC, 15 psi Steam, 160 psi Water, Automatic Reset
  • No lock out with loss of power if probe is in water
  • Test butTon
  • Green LED indicates power on
  • Red LED indicates low water
  • 20000 ohm probe sensitivity
  • With standard probe
,
,


McDonnell & Miller B103-5

Item#:
B103-5
Manufacturer Item:
176234
Manufacturer:
XYLEM INC.
Mcdonnell & Miller 309100 Manual Reset Low Water Cutoff Switch, DPST

McDonnell & Miller B122

Item#:
B122
Manufacturer Item:
309100
Manufacturer:
XYLEM INC.
Mcdonnell & Miller PSE-801-M-120 Low Water Cut-Off, 120 VAC, 15 psi Steam, 160 psi Water, Manual Reset
    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

Item#:
B103-17
Manufacturer Item:
PSE-801-M-120
Manufacturer:
XYLEM INC.
Hydrolevel Safgard 170SV Low Water Cut-Off, 120 VAC, 160 psi, Automatic Reset
    Combustion pressure switch check feature and communication interface capability
  • Heavy duty electro-mechanical design for long life
  • Automatically re-energizes circuit upon return to safe water level
  • Equipped with shorter probe for mounting in standard reducing tees
  • SPDT switch contact
  • Includes shorter EL1214-SV probe suitable for mounting in standard black tee

    Hydrolevel B103-30

Item#:
B103-30
Manufacturer Item:
45-175
Manufacturer:
HYDROLEVEL COMPANY
Dual Float and Switch Assembly 15 psi
    1-piece unit that facilitates installation and ensures the most up-to-date construction
  • Complete float and dual switch assembly

    Watts Water B121-1

Item#:
B121-1
Manufacturer Item:
0226060
Manufacturer:
WATTS REGULATOR CO
Mcdonnell & Miller 67-G Mechanical Low Water Cut-Off, 120/240 VAC, 20 psi, Automatic Reset
    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

Item#:
B103-1
Manufacturer Item:
67-G
Manufacturer:
XYLEM INC.
Mcdonnell & Miller 310447 Blow-Down Ball Valve, 3/4", NPT
    Full ported ball action valve
  • PTFE seats provide bind free, leak tight ball movement
  • Easy open handle keeps hands away from hot water and steam
  • Gasket and mounting screws included
  • For hot water and steam boilers
Sid Harvey Item #:B122-2: Replaces Part #:'s : 13552

McDonnell & Miller B122-2

Item#:
B122-2
Manufacturer Item:
310447
Manufacturer:
XYLEM INC.
Taco LFM0243S-1 Electronic Low Water Cut-Off, 24 VAC, Manual Reset

Taco LFM0243S-1

Item#:
LFM0243S-1
Manufacturer Item:
LFM0243S-1
Manufacturer:
TACO INC.
Taco LFM1203S-1 Green Electronic Low Water Cut-Off, 120 VAC, 160 psi, Manual Reset
    Provides accurate and dependable protection
  • External LEDs and simplified wiring for easy
  • Probe-style, microprocessor-based control that detects the fluid level in hot water and steam boilers and reacts when the level falls below the minimum safe operating level
  • SPDT switch contact

    Taco LFM1203S-1

Item#:
LFM1203S-1
Manufacturer Item:
LFM1203S-1
Manufacturer:
TACO INC.
Taco LFA1203S-1 Green Electronic Low Water Cut-Off, 120 VAC, 160 psi, Automatic Reset
    Provides accurate and dependable protection
  • External LEDs and simplified wiring for easy installation and testing and patented adjustable probe sensitivity
  • Probe-style, microprocessor-based control that detects the fluid level in hot water and steam boilers and reacts when the level falls below the minimum safe operating level
  • SPDT switch contact

    Taco LFA1203S-1

Item#:
LFA1203S-1
Manufacturer Item:
LFA1203S-1
Manufacturer:
TACO INC.
Taco LFA0243S-1 Green Electronic Low Water Cut-Off, 24 VAC, Automatic Reset
    Provides accurate and dependable protection
  • External LEDs and simplified wiring for easy installation and testing and patented adjustable probe sensitivity
  • Probe-style, microprocessor-based control that detects the fluid level in hot water and steam boilers and reacts when the level falls below the minimum safe operating level
  • SPDT switch contact

    Taco LFA0243S

Item#:
LFA0243S
Manufacturer Item:
LFA0243S
Manufacturer:
TACO INC.
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