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Celsius (143)
Fahrenheit (179)
Pressure (408)
Temperature (1)
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2" (65)
2-1/2" (166)
3" (50)
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4" (107)
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1" (4)

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Max Pressure (PSI)
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5 (9)
10 (2)
15 (18)
30 (35)
50 (2)
55 (2)
60 (39)
75 (31)
100 (65)
150 (3)

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110°F (2)
120°F (6)
140°F (58)
160°F (1)
240°F (30)
248°F (10)
260°F (2)
130°F (5)
158°F (8)
176°F (18)

Min Temp (F)
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-4°F (46)
30°F (53)
-50°F (1)
60°F (14)
70°F (21)

Max Temp (C)
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115°C (18)
120°C (29)
121°C (11)
150°C (13)
160°C (29)
200°C (2)
260°C (3)
40°C (2)
50°C (7)
550°C (1)

Min Temp (C)
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-10°C (1)
-15°C (7)
-18°C (3)
-20°C (20)
-40°C (9)
-45°C (1)
-50°C (2)
-5°C (6)
0°C (49)
10°C (10)

Review Score
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(100)
(36)
(16)
(7)
(7)

Price Range
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$1 to $5 (9)
$5 to $10 (33)
$10 to $15 (77)
$15 to $20 (23)
$20 to $25 (48)
$25 to $30 (49)
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Boiler Temperature & Pressure Gauges

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Product Image of 2" Pressure Gauge, Bottom Mount (0-100 PSI)
2" Pressure Gauge, Bottom Mount (0-100 PSI)
SKU: GEP-100-BM
Bluefin
SKU: GEP-100-BM
Brand: Bluefin
(8)
$4.72 each
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Product Image of Water Test Gauge, 3/4" Hose Thread, Top Mount (0 - 200 PSI)
$8.78 each
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Product Image of 2.5" Tridicator, 1-9/16" Well, Back Mount Temperature & Pressure Gauge (0-75 PSI, 30-Degree to 250-Degree (F))
$18.36 each
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Product Image of 2.5" Hot Water Thermometer w/ 1/2" NPT Connection (32-Degree (F) to 250-Degree (F))
$13.10 each
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Product Image of 2" Economy Gas Test Pressure Gauge (0-100 PSI)
$12.33 each
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Product Image of 1/4" NPT, 2" Dial, Lower Mount No Lead Pressure Gauge (0-100 PSI)
$5.09 each
BOX UP & SAVE 13%
$44.20 box of 10
$4.42 each
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Product Image of 2.5" Stainless Steel Liquid Filled Gauge, Bottom Mount, w/ Brass Internals (0-100 PSI)
$12.98 each
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Product Image of 2.5" Stainless Steel Liquid Filled Gauge, Bottom Mount, w/ Brass Internals - Lead Free (0-100 PSI)
$12.66 each
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Product Image of 1/4" NPT, 3-1/8" Face, Temperature & Pressure Gauge (Tridicator), TD-090
$29.57 each
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Product Image of Water Test Gauge, 3/4" Hose Thread
Water Test Gauge, 3/4" Hose Thread
SKU: PG25-WTG200MP
Boshart
SKU: PG25-WTG200MP
Brand: Boshart
(23)
$9.75 each
In Stock
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Product Image of Gas Test Manifold Coupling w/ Pressure Gauge & Snifter Valve (0-30 PSI)
$9.03 each
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Product Image of 1/4" CBM PT 1088 Combination Temperature and Pressure Gauge (2" Shank, 1-5/8" Insert)
$31.32 each
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Product Image of 2.5" Economy Maximum Pointer Water Test Pressure Gauge, Top Mount (0-160 PSI)
$11.24 each
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Product Image of 2.5" Stainless Steel Liquid Filled Gauge, Bottom Mount, w/ Brass Internals (0-30 PSI)
$13.70 each
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Product Image of 2-1/2" Dial Stainless Steel Pressure Gauge w/ Bottom Mount
$26.16 each
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Product Image of 2.5" Steel Low Pressure Gauge, Bottom Mount, w/ Brass Internals (0-5 PSI)
$25.60 each
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Product Image of 2" Dual Scale Economy Pressure Gauge, Bottom Mount (0-30 PSI)
$6.53 each
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Product Image of 2" Economy Gas Test Pressure Gauge (0-30 PSI)
$11.35 each
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Product Image of 2.5" Steel Low Pressure Gauge, Bottom Mount w/ Brass Internals (0-32" WC)
$25.60 each
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Product Image of 1/2" NPT, 3" Face, Temperature & Pressure Gauge - Short (Tridicator)
1/2" NPT, 3" Face, Temperature & Pressure Gauge - Short (Tridicator)
SKU: TR30-CB2S-60/250
Boshart
SKU: TR30-CB2S-60/250
Brand: Boshart
(5)
$22.27 each
In Stock
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Product Image of 2" Economy Gas Test Pressure Gauge (0-15 PSI)
$11.36 each
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Product Image of 2.5" Stainless Steel Liquid Filled Gauge, Bottom Mount, w/ Brass Internals (0-200 PSI)
$14.42 each
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Product Image of 2.5" Stainless Steel Liquid Filled Gauge, Bottom Mount, w/ Brass Internals (0-60 PSI)
$12.98 each
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Product Image of 3/4" Leak Test Gauge (0-30 PSI)
$18.51 each
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Product Image of 2-1/2" Liquid Filled Pressure Gauge w/ Lower Mount (0-100 psi)
$13.96 each
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Product Image of LFDPG1 2-1/2" Pressure Gauge - Lead Free (0-100 psi)
$26.68 each
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Product Image of 1/2" NPT, 3-1/8" Face, Temperature & Pressure Gauge (Tridicator), TDV-040
$40.76 each
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Product Image of 2.5" Tridicator, 3-3/8" Well, Back Mount Temperature & Pressure Gauge (0-75 PSI, 30 to 250-Degree (F))
$18.65 each
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Product Image of 2" Dial Stainless Steel Pressure Gauge - Lower Mounted (0-100 PSI)
$20.18 each
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Product Image of 1-1/2" Back Port Gauge, 0-3000psi
$10.90 each
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Product Image of 5" Straight Thermometer with Thermowell (30-Degree (F) to 240-Degree (F))
$30.55 each
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Product Image of 2.5" Stainless Steel Liquid Filled Gauge, Back Mount, w/ Brass Internals (0-100 PSI)
$14.94 each
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Product Image of 1/2" Leak Test Gauge (0-30 PSI)
1/2" Leak Test Gauge (0-30 PSI)
SKU: TG-30-12
DiversiTech
SKU: TG-30-12
Brand: DiversiTech
$15.25 each
In Stock
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Product Image of 2.5" Stainless Steel Liquid Filled Gauge, Bottom Mount, w/ Brass Internals (0-160 PSI)
$14.42 each
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Product Image of 1/4" NPT Brass Pressure Snubber for Water, Steam, Gasoline & Light Oils (Lead Free)
$9.49 each
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Product Image of 1/4" NPT, 3-1/8" Face, Long Probe Temperature & Pressure Gauge (Tridicator), TD-165
$29.93 each
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Product Image of 2.5" Stainless Steel Liquid Filled Gauge, Bottom Mount, w/ Brass Internals (0-300 PSI)
$14.42 each
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Product Image of 1/2" NPT Connection Thermometer w/ 2-1/2" Dial Size, GT162
$22.47 each
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Product Image of 2.5" Snap Well Thermometer w/ 1/2" NPT Connection, Stainless Steel Well (32-Degree (F) to 250-Degree (F))
$13.36 each
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Product Image of 2" Pressure Gauge, Back Mount (0-100 PSI)
2" Pressure Gauge, Back Mount (0-100 PSI)
SKU: GEP-100-BK
Bluefin
SKU: GEP-100-BK
Brand: Bluefin
(1)
$6.24 each
In Stock
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Product Image of LFDPTG-1 3" Bottom Entry Pressure & Temperature Gauge (0-75 psi)
LFDPTG-1 3" Bottom Entry Pressure & Temperature Gauge (0-75 psi)
SKU: 0121664
Watts
SKU: 0121664
Brand: Watts
(1)
$49.67 each
In Stock
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Product Image of 2.5" Tridicator with Extension Back Temperature and Pressure Gauge (0-75 PSI and 70°F-320°F)
$34.79 each
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Product Image of 2" Dual Scale Economy Pressure Gauge, Bottom Mount (0-15 PSI)
$6.17 each
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Product Image of 620B, 4-1/2" Pressure Gauge with Lower Mount (0-100 PSI)
$24.54 each
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Product Image of 3.5" Industrial Thermometer w/ Valox Case (30-Degree (F) to 240-Degree (F))
$59.80 each
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Product Image of Water Test Gauge, 3/4" Hose Thread, Top Mount (0 - 300 PSI)
$8.53 each
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Product Image of 2.5" Aluminum Clamp-On Thermometer (32-Degree (F) to 250-Degree (F))
$10.56 each
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Product Image of BX9, 9" Scale, 3-1/2" Adjustable Angle Industrial Thermometer (30-Degree (F) to 240-Degree (F))
$56.42 each
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Resources
FAQs, Manuals & Videos
Articles
More About Temperature & Pressure Gauges
Temperature and pressure gauges are used to measure the temperature and pressure of a gas or liquid in a system. Stainless steel is the most common material used for these gauges, followed by brass. Gauges are available in either dry or liquid filled models. A liquid filled gauge has a long lifespan because it has fewer moving parts and the thick oil which fills it leaves no room for humid ambient air to enter. Water cannot condense and accumulate in a liquid filled gauge, as it can in a dry gauge.

Some gauges contain illuminated dials and digital readouts for better visibility. A gauge with temperature compensation has the ability to correct any ambient temperature variation. Differential gauges allow for differential pressures, and duplex gauges indicate dual pressures on a single dial. Tridicators are common pressure gauges that measure temperature, pressure, and altitude. Snap Well thermometers measure the ambient temperature of a desired location.