Therma Gauge

Krueger Gauge




    Excellent mechanical level indication come in many sizes and conguigurations.
Easy to order.  Get the nut snug and ail the float so it does not hit the tank wall then tighten.
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This “highly visible” gauge is recommended for use

when mounting close to a tank wall and for tanks with

baffles or other obstructions.  It’s two piece bushing

(pictured right) makes it more versatile than the

At-A-Glance Gauge. Direct mechanical action,

 reliable construction and “high visibility” make

this gauge perfect choice for tanks with depths up to 12’.




A. CALIBRATION ASSEMBLY:  Inner and outer plastic housings with printed calibration paper between

housings.  Withstands up to 70 PSI.  (options-glass inner piece)




C.  LOCK NUT:  Red plastic to hold calibration assembly in place.  (options-aluminum lock nut)


D. DURO NITRILE GASKET:  On which flanges on base of calibration assembly are firmly seated to  

      prevent leakage. (options-viton gasket)


E. ALUMINUM DIE CAST BUSHING:  Type H-1.5 fits 1.5” standard npt tank flange.  Type H-2 fits standard 2” npt tank flange.  This is the only part of the gauge that differs between types H-1.5 and H-2.

      (options-stainless steel)


F.  STANDARD ROD:  0.1875 dia. galvanized steel rod. (options-stainless steel)


G. PUSH ROD:  0.125 dia. galvanized steel rod activates indicator disc by movement of float arm (I).

      (options-stainless steel)


H.  BRASS RIVETS:  Four brass tubular rivets. (options-non-riveted, stainless)


I. FLOAT ARM ASSEMBLY:  0.1875 x 0.0625 galvanized steel flat rod, including bracket and rod,                       

      attached to standard, push rod, and plastic float. (options-stainless steel)


J. PLASTIC FLOAT:  High density polyethelene float 1.125” dia. x 3.0” long. (options-stainless float,

      nitrophyll float)


Therma Gauges are manufactured to fit specific tank depth dimensions, 6 inches to 12 feet.  Although we do recommend the L Gauge (page…18) on tanks 10” and under.  Standard rod (F),  push rod (G), float arm assembly (I) are varied in length to provide correct operation of gauge. 


Ordering Instructions—Part numbers are as follows: H-(size opening)-(depth in inches) Example H-2-48”.  Gauge is also available in 275 gallon format.  For vaulted tank ordering instructions see page...25.


Optional All Stainless Steel Model—When ordering, state “All SS” after part number.  This model provides stainless floats, stainless rods, stainless bushing assembly, glass calibration insert, and aluminum