Apply to be a TradeMaster!
Filter menu expanded

Filters

626 items
Reset

SORT

Product Availability

Show In Stock Only (455)

Brand

Apollo Valves (1)
Ashcroft (23)
Azel Technologies (2)
Bluefin (53)
Boshart (29)
Burnham (1)
Caleffi (4)
DiversiTech (10)
Dwyer (72)
Hilmor Tools (2)

Measures

Celsius (114)
Fahrenheit (150)
Pressure (364)
Temperature (1)
Vacuum (1)

Mount

Back (151)
Bottom (220)
Flush (2)
Magnetic (2)
Panel (2)
Rotatable Bottom (21)
Surface (2)
Tee (2)
Top (11)
Wall (1)

Dial Size

1-1/2" (17)
2" (64)
2-1/2" (157)
3" (50)
3-1/8" (6)
3-1/4" (2)
3-1/2" (13)
4" (74)
4-1/2" (19)
6" (1)

Connection Size

1/8" (3)
1/4" (48)
1/2" (69)
3/4" (50)
1" (1)

Max Pressure (PSI)

5 (5)
10 (1)
15 (17)
30 (35)
50 (2)
55 (2)
60 (37)
75 (29)
100 (62)
150 (3)

Max Temp (F)

60°F (1)
100°F (1)
110°F (2)
120°F (6)
130°F (2)
140°F (27)
150°F (2)
158°F (1)
160°F (1)
176°F (14)

Min Temp (F)

-60°F (1)
-58°F (1)
-50°F (1)
-40°F (11)
-22°F (1)
-4°F (17)
0°F (25)
20°F (35)
30°F (37)
32°F (16)

Max Temp (C)

40°C (2)
50°C (7)
60°C (3)
66°C (1)
70°C (6)
80°C (4)
90°C (4)
95°C (4)
115°C (17)
120°C (22)

Min Temp (C)

-50°C (2)
-45°C (1)
-40°C (9)
-30°C (1)
-20°C (20)
-18°C (2)
-15°C (7)
-10°C (1)
-5°C (6)
0°C (34)

Review Score

(101)
(37)
(15)
(7)
(7)

Price Range

$1 to $5 (8)
$5 to $10 (38)
$10 to $15 (73)
$15 to $20 (29)
$20 to $25 (45)
$25 to $30 (46)
$30 to $35 (32)
$35 to $40 (22)
$40 to $45 (20)
$45 to $50 (18)

Boiler Temperature & Pressure Gauges

Help Face
Need a little help?
626 items
Grid
List
Compare
Product Image of Magnehelic Flush Mounting Kit for Magnehelic Gages
$47.24 each
In Stock
Get 4 by Wed, Aug 19
In Stock
Get 4 by Wed, Aug 19
Compare
Product Image of 2-1/2" Stainless Steel Liquid Filled Gauge, 1/4" Bottom NPT w/ Brass Internals (0-1000 PSI)
$23.27 each
In Stock
Get 6 by Tue, Aug 18
In Stock
Get 6 by Tue, Aug 18
Compare
Product Image of 2-1/2" PEM Dual Scale Economy Pressure Gauge (30"Hg-0-30 PSI)
$11.05 each
In Stock
Get 5 by Tue, Aug 18
In Stock
Get 5 by Tue, Aug 18
Compare
Product Image of 1-1/2" Liquid Filled Pressure Gauge w/ Center Back Mount (0-30 psi)
$3.39 each
In Stock
Get 31 by Wed, Aug 19
In Stock
Get 31 by Wed, Aug 19
Compare
Product Image of 4" Stainless Steel Dual Scale Liquid Filled Gauge, 1/4" Bottom (0-100 PSI)
$102.15 each
In Stock
Get 14 by Tue, Aug 18
In Stock
Get 14 by Tue, Aug 18
Compare
Product Image of BX9, 9" Scale, 6" Adjustable Angle Industrial Thermometer (30-Degree (F) to 240-Degree (F))
$65.40 each
In Stock
Get 10 by Tue, Aug 18
In Stock
Get 10 by Tue, Aug 18
Compare
Product Image of 3/4" TBR Brass Bi-Metal Threaded Thermowell w/ 2-1/2" Stem
$27.81 each
In Stock
Get 3 by Thu, Aug 20
In Stock
Get 3 by Thu, Aug 20
Compare
Product Image of 3" TTD Bottom Mount Dual Scale Tridicator (0-75 PSI and 70°F-320°F)
$88.80 each
In Stock
Get 4 by Tue, Aug 18
In Stock
Get 4 by Tue, Aug 18
Compare
Product Image of 600CB, 4-1/2" Pressure Gauge with Lower Mount (0-60 PSI)
$41.21 each
In Stock
Get 5 by Tue, Aug 18
In Stock
Get 5 by Tue, Aug 18
Compare
Product Image of 2-1/2" PLP Steel Low Pressure Gauge, 1/4" Bottom NPT w/ Brass Internals (0-100"WC)
$62.50 each
In Stock
Get 4 by Tue, Aug 18
In Stock
Get 4 by Tue, Aug 18
Compare
Product Image of 800B, 4" Dry Utility Pressure Gauge with Lower Mount, 1/4 NPT (0-100 PSI)
$20.78 each
In Stock
Get 2 by Tue, Aug 18
In Stock
Get 2 by Tue, Aug 18
Compare
Product Image of 2-1/2" Stainless Steel Liquid Filled Gauge, 1/4" Back NPT w/ Brass Internals (0-60 PSI)
$35.20 each
In Stock
Get 6 by Tue, Aug 18
In Stock
Get 6 by Tue, Aug 18
Compare
Product Image of 3-1/2" TBT Bi-Metal Bottom Mount Thermometer (30°F to 250°F & 0°C to 121°C)
$106.49 each
In Stock
Get 3 by Tue, Aug 18
In Stock
Get 3 by Tue, Aug 18
Compare
Product Image of Magnehelic Differential Pressure Gage (0 - 8.0" W.C.)
$107.88 each
In Stock
Get 5 by Tue, Aug 18
In Stock
Get 5 by Tue, Aug 18
Compare
Product Image of Magnehelic Differential Pressure Gage (.25" - 0" - .25" W.C.)
$112.02 each
In Stock
Get 2 by Tue, Aug 18
In Stock
Get 2 by Tue, Aug 18
Compare
Product Image of 3/4 NPT Brass Thermowell with 6" Stem, 2-1/2" Insertion
$23.11 each
In Stock
Get 11 by Tue, Aug 18
In Stock
Get 11 by Tue, Aug 18
Compare
Product Image of 2" Lower Mount Pressure Gauge, ABS Brass Dry (0-60 psi)
$4.59 each
In Stock
Get 11 by Tue, Aug 18
In Stock
Get 11 by Tue, Aug 18
Compare
Product Image of 3" TTD Bottom Mount Dual Scale Tridicator (0-100 PSI and 70°F-320°F)
$69.34 each
In Stock
Get 1 by Fri, Aug 21 - Mon, Aug 24
In Stock
Get 1 by Fri, Aug 21 - Mon, Aug 24
Compare
Product Image of Replacement Hose Set with End Fittings for T11
$21.24 each
In Stock
Get 1 by Wed, Aug 19
In Stock
Get 1 by Wed, Aug 19
Compare
Product Image of 15 lb. Gas Test Gauge Assembly
$124.87 each
In Stock
Get 1 by Tue, Aug 18
In Stock
Get 1 by Tue, Aug 18
Compare
Product Image of 1/2" LFTP-E Temperature & Pressure Test Plugs, Lead Free
$75.14 each
In Stock
Get 7 by Tue, Aug 18
In Stock
Get 7 by Tue, Aug 18
Compare
Product Image of 4" PEM Dual Scale Economy Pressure Gauge (0-200 PSI)
$28.73 each
In Stock
Get 3 by Tue, Aug 18
In Stock
Get 3 by Tue, Aug 18
Compare
Product Image of 2-1/2" Stainless Steel Liquid Filled Gauge, 1/4" Back NPT w/ Brass Internals (0-30 PSI)
$37.21 each
In Stock
Get 5 by Tue, Aug 18
In Stock
Get 5 by Tue, Aug 18
Compare
Product Image of Pressure & Temperature Gauge, 20-1014
$197.74 each
In Stock
Get 1 by Tue, Aug 18
In Stock
Get 1 by Tue, Aug 18
Compare
Product Image of 1/2" NPT Brass Test Plug w/ Retainer, Nordel (EPDM) Core
$9.33 each
Out of Stock
Get it by Tue, Sep 1 - Wed, Sep 9
Out of Stock
Get it by Tue, Sep 1 - Wed, Sep 9
Compare
Product Image of 2-1/2" Stainless Steel Liquid Filled Gauge, 1/4" Bottom NPT w/ Brass Internals (0-3000 PSI)
$27.79 each
In Stock
Get 4 by Tue, Aug 18
In Stock
Get 4 by Tue, Aug 18
Compare
Product Image of 1/2" Sweat Connection Thermometers w/ 2-1/2" Dial Size, GS250
$30.44 each
In Stock
Get 7 by Tue, Aug 18
In Stock
Get 7 by Tue, Aug 18
Compare
Product Image of 4" 1008AL Stainless Steel Case Pressure Gauge (Liquid Filled)
4" 1008AL Stainless Steel Case Pressure Gauge (Liquid Filled)
SKU: 1001008AL02L-0/160
Ashcroft
SKU: 1001008AL02L-0/160
Brand: Ashcroft
$121.41 each
In Stock
Get 3 by Tue, Aug 18
In Stock
Get 3 by Tue, Aug 18
Compare
Product Image of 5" 5AS Straight Thermometer with Thermowell, Lead Free (30°F to 240°F & 0°C to 115°C)
$80.73 each
In Stock
Get 6 by Tue, Aug 18
In Stock
Get 6 by Tue, Aug 18
Compare
Product Image of 1/4" NPT Stainless Steel Pressure Snubber for Water, Steam, Gasoline & Light Oils (Lead Free)
$47.30 each
In Stock
Get 3 by Tue, Aug 18
In Stock
Get 3 by Tue, Aug 18
Compare
Product Image of LFDPG5 2" Pressure Gauge, 1/4" MNPT Inlet, Lead Free (0-160 psi)
$40.68 each
In Stock
Get 4 by Tue, Aug 18
In Stock
Get 4 by Tue, Aug 18
Compare
Product Image of 4" 1008AL Stainless Steel Case Pressure Gauge (Liquid Filled)
4" 1008AL Stainless Steel Case Pressure Gauge (Liquid Filled)
SKU: 1001008AL02L-0/300
Ashcroft
SKU: 1001008AL02L-0/300
Brand: Ashcroft
$151.08 each
In Stock
Get 5 by Tue, Aug 18
In Stock
Get 5 by Tue, Aug 18
Compare
Product Image of 4" Stainless Steel Dual Scale Liquid Filled Gauge, 1/4" Bottom (30"Hg-0-30 PSI)
$94.15 each
In Stock
Get 1 by Tue, Aug 18
In Stock
Get 1 by Tue, Aug 18
Compare
Product Image of 2-1/2" Stainless Steel Liquid Filled Gauge, 1/4" Back NPT w/ Brass Internals (0-600 PSI)
$30.12 each
In Stock
Get 2 by Tue, Aug 18
In Stock
Get 2 by Tue, Aug 18
Compare
Product Image of 760B, 2.5" Low Pressure Diaphragm Gauge
760B, 2.5" Low Pressure Diaphragm Gauge
SKU: 760B2502LT660
Trerice
SKU: 760B2502LT660
Brand: Trerice
$52.14 each
In Stock
Get 2 by Tue, Aug 18
In Stock
Get 2 by Tue, Aug 18
Compare
Product Image of Gas Tester Complete w/ 1/8" NPT Air Valve
$13.40 each
In Stock
Get 6 by Tue, Aug 18
In Stock
Get 6 by Tue, Aug 18
Compare
Product Image of D83LFSS, 1/4" NPT, 2-1/2" Dial, Industrial Pressure Gauge with CBM (0-200 PSI)
$56.80 each
In Stock
Get 5 by Tue, Aug 18
In Stock
Get 5 by Tue, Aug 18
Compare
Product Image of 2" TSW Dial Hot Water Thermometer, Lead Free (30°F to 250°F & 0°C to 120°C)
$42.86 each
In Stock
Get 2 by Wed, Aug 19
In Stock
Get 2 by Wed, Aug 19
Compare
Product Image of 1/2" NPT Brass Pressure Snubber for Water, Steam, Gasoline & Light Oils (Lead Free)
$28.13 each
In Stock
Get 34 by Tue, Aug 18
In Stock
Get 34 by Tue, Aug 18
Compare
Product Image of 2-1/2" PLP Steel Low Pressure Gauge, 1/4" Bottom NPT w/ Brass Internals (0-55"WC)
$76.74 each
In Stock
Get 5 by Tue, Aug 18
In Stock
Get 5 by Tue, Aug 18
Compare
Product Image of 2-1/2" Stainless Steel Dual Scale Liquid Filled Gauge, 1/4" Back (0-400 PSI)
$30.12 each
In Stock
Get 4 by Tue, Aug 18
In Stock
Get 4 by Tue, Aug 18
Compare
Product Image of LFDPG1 2-1/2" Pressure Gauge (0-300 psi)
LFDPG1 2-1/2" Pressure Gauge (0-300 psi)
SKU: 0121643
Watts
SKU: 0121643
Brand: Watts
$31.52 each
In Stock
Get 1 by Tue, Aug 18
In Stock
Get 1 by Tue, Aug 18
Compare
Product Image of 500XB, 4-1/2" Pressure Gauge with Lower Mount (0-160 PSI)
500XB, 4-1/2" Pressure Gauge with Lower Mount (0-160 PSI)
SKU: 500XB4502LA160
Trerice
SKU: 500XB4502LA160
Brand: Trerice
$112.52 each
In Stock
Get 1 by Tue, Aug 18
In Stock
Get 1 by Tue, Aug 18
Compare
Product Image of 4" Stainless Steel Dual Scale Liquid Filled Gauge, 1/4" Bottom (0-60 PSI)
$87.94 each
In Stock
Get 2 by Tue, Aug 18
In Stock
Get 2 by Tue, Aug 18
Compare
Product Image of 2-1/2" PEM Dual Scale Economy Pressure Gauge (0-30"Hg Vacuum/kpa)
$14.74 each
In Stock
Get 9 by Tue, Aug 18
In Stock
Get 9 by Tue, Aug 18
Compare
Product Image of B856, 5" Dial, 4" Adjustable Angle Bimetal Thermometer with Recal (20-Degree (F) to 240-Degree (F) & -10-Degree (C) to 115-Degree (C))
$130.43 each
In Stock
Get 2 by Wed, Aug 19
In Stock
Get 2 by Wed, Aug 19
Compare
Product Image of BX9, 9" Scale, 3-1/2" Adjustable Angle Industrial Thermometer (0-Degree (F) to 160-Degree (F) & -18-Degree (C) to 70-Degree (C))
$56.42 each
In Stock
Get 1 by Tue, Aug 18
In Stock
Get 1 by Tue, Aug 18
Compare
Product Image of 5" 5AS Angle Thermometer with Thermowell, Lead Free (30°F to 240°F & 0°C to 115°C)
$78.67 each
In Stock
Get 4 by Tue, Aug 18
In Stock
Get 4 by Tue, Aug 18
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.