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Model # DP IWTG

Internet # 100175467

Store SKU # 106033

3/4 in. Plastic Water Pressure Test Gauge

This item has been discontinued.
The Home Depot no longer carries this specific product.

Was  $11.68
$9.98 /each

Save $1.70 (15%)




Model # DP IWTG

Internet # 100175467

Store SKU # 106033

When you choose this hose connection gauge, you can rest assured that you're getting a quality product to test water supply pressures within a distribution system. Its red indicator hand holds at the highest reading registered for detection of thermal expansion pressure surges. It easy to install, and no tools are required.

California residents: see  Proposition 65 information

  • Made of steel for durability and strength
  • Easy to read indicator for detecting pressure surges
  • Features a copper alloy tube sensing element
  • Accuracy is ASME, type B

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Length (in.) 
1 in 
Product Width (in.) 
Valve Inlet Diameter (in.) 
Valve Outlet Diameter (in.) 
Compatible Pipe Material 
Screw on 
Maximum Pressure (psi) 
Maximum Working Temperature (F) 
Product Weight (lb.) 
.46 lb 
Warranty / Certifications
Manufacturer Warranty 
Watts (the "Company") warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment. 


Rated 3.4 out of 5 by 22 reviewers.
Rated 5.0 out of 5.0 by Perfect solution to diagnose a problem I had leaks developing in my polypropylene supply lines plus toilet, icemaker , and hot water heater drain valves that were leaking a little. I needed to test my in-house water pressure. I just needed a gauge to tell me the approximate range of my pressure. This gauge showed that I had 120lb pressure throughout the house rather than desirable 40 - 60 lb range! My pressure regulator had failed. Just knowing that and correcting the problem has possibly saved me hundreds if not thousands of dollars of repairs and water damage to my house and belongings! I have been in construction for 50 years and never experienced a bad or failed regulator. I enjoy high quality tools and equipment but sometimes an inexpensive product is all you need to get the data that you need to "save the day". It doesn't matter to me if the gauge is off a few pounds here or there, it's the range that mattered. I got a couple adapters that enabled me to attach the gauge conveniently to my shower head fitting vs a hose faucet that may not have been regulated down. I'm going to make a point to test on a regular basis. Undoubtedly the best $10 I ever spent! Get one and test your house. You can't believe how much and how fast water comes out of a broken pipe at 120 pounds pressure! I was extremely lucky, I was standing right there both times my pipes ruptured due to high pressure. January 11, 2015
Rated 5.0 out of 5.0 by Quick and Easy This little Watts pressure test gauge is so easy to use. Mine cost about $12 with tax. Simply turn the red indicator knob counter clockwise to ‘0' then screw the standard 3/4" connector on your hose bibb or hot water heater drain connection, turn water on & then off. The red indicator needle will stop and stay at the highest pressure. Make sure water is off then remove gauge. It does not fill with water so you have only about 1 oz of water used. Neatly cut the package up one side and you can easily remove and then put it back in package so you don't loose rubber washer and it will stay clean and protected from damage June 24, 2015
Rated 5.0 out of 5.0 by Works well We bought this gauge so we could monitor standing pressure as well as pressure spikes. We were diagnosing an over pressure issue in our house. This little gauge did the trick and helped us figure out the problem. The red hand (spike pressure) simply piggy backs on the gauge needle and is manually reset by turning the brass knob on the face. Works great!! January 25, 2015
Rated 3.0 out of 5.0 by Accurate Pressure, very sensitive second indicator The primary pressure gauge needle has been very accurate, which is of primary importance. I selected this gauge because it included a secondary "maximum" pressure needle necessary to allow me to measure the impact of thermal expansion on my closed water system. Unfortunately, I found the maximum pressure indicator needle is so loose/easy to move, that the resulting indications are highly suspect. It appears that the primary needle can bounce (not push) the secondary needle to a higher and, therefore, inaccurate reading. Bottom line, this gauge works as an instant read pressure gauge but may not be a good investment for those that need to read the maximum pressures attained. FYI, the gauge was used in accordance with the manufactures directions. January 26, 2015
Rated 5.0 out of 5.0 by good value for a quick check for the price, this gauge worked well for me. I have a professional liquid filled gauge but I couldn't find it and got this one to get an inspection completed. I read the other reviews on this product and was doubtful if it would be up to the task. After using it at the inspection site I found my pro gauge at home and compared the readings at my home. This product had the exact same readings as my liquid filled gauge. July 1, 2013
Rated 1.0 out of 5.0 by Water pressure gauge The black dial is at 150 and does not start at zero? When attached to water it just pegs? Tried neighbors water line and it does the same. No instructions as to how to zero? August 30, 2015
Rated 1.0 out of 5.0 by broken after one use. broken after one use. at first time read the water presser is 60 psi, then it can not return to 0. March 22, 2015
Rated 4.0 out of 5.0 by Showed me exactly what I needed to know ... This Watts water pressure gauge is an easy and inexpensive way to determine residential or commercial water line pressure. I connected it to an exterior faucet and it confirmed my suspicions about elevated pressure. After repairing my pressure problem I simply left the gauge attached to my faucet for a few weeks to be sure my water pressure remained in a safe range. Good product which does exactly what it implies it does. March 12, 2013
  • 2015-10-06T11:10:03.373-05:00
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