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Model #DP IWTG

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3/4 in. Plastic Water Pressure Test Gauge

  • 3/4-inch hose connection
  • Easily attaches to outdoor hose bibb or water heater drain
  • Determine if an expansion tank or pressure regulator is needed.
  • See More Details

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Product Overview

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. Rubber garden hose washer included. Easy to install, no tools are required.
  • 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
  • Easy to install with no tools
  • Works with many pipe materials

Info & Guides

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3/4 in. FHT x 3/4 in. MHT Stainless Steel Water Hammer Arrestor3/4 in. Swivel FHT x 3/4 in. MHT Mini Water Hammer Arrestor
BrandHomewerks WorldwideWattsHomewerks WorldwideEastman
Name1/2 in. Stainless Steel MIP Straight Water Hammer Arrestor with No Lead3/4 in. Plastic Water Pressure Test Gauge3/4 in. FHT x 3/4 in. MHT Stainless Steel Water Hammer Arrestor3/4 in. Swivel FHT x 3/4 in. MHT Mini Water Hammer Arrestor
Price
Ratings
(19)
(512)
(184)
(3)
ConnectionMale Pipe ThreadFemale Hose ThreadFHT x MHTFHT x MHT
ApplicationPotable WaterPotable WaterPotable WaterNon-Potable Water
Compatible Pipe MaterialMulti-PurposeMulti-PurposeMulti-PurposeNot Applicable
Maximum Pressure (psi)250200250250
MaterialStainless SteelPlasticStainless SteelBrass
Maximum Working Temperature (F)220140220180
Indoor/OutdoorIndoorIndoor,OutdoorIndoorIndoor
View ProductView ProductView ProductView Product

Specifications

Dimensions

Inlet Diameter (In.)
3/4
Outlet Diameter (In.)
3/4
Product Depth (in.)
1.12
Product Height (in.)
5
Product Length (in.)
1 in
Product Width (in.)
3

Details

Application
Potable Water
Compatible Pipe Material
Multi-Purpose
Connection
Female Hose Thread
Features
Removable,Threaded
Indoor/Outdoor
Indoor,Outdoor
Material
Plastic
Maximum Pressure (psi)
200
Maximum Working Temperature (F)
140
Pack Size
1
Product Weight (lb.)
.46
Returnable
90-Day
Valve Type
Pressure Regulating

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.

Questions & Answers

15Questions67Answers

Is the 3/4 in. hose connection the diameter of the spigot opening?

Asked by steveo February 22, 2021
5
Answers

Yes it is. It will attach to the spigot (faucet) the same as the hose does. It will attach to the end of the hose as well. I will sometimes put a "Y" on at the faucet to hook the gauge and a hose on at the same time.

I need Instructions, for using the gauge. I have no instructions

Asked by Jamber October 8, 2020
5
Answers

The gauge just attaches to the faucet and then you turn the faucet on. It will sweep the red needle with the black needle and it will stay at the highest reading so you can leave it on for a while and then go back and look at it and see if there was any spike in the pressure. you can re-set the red needle back to the black needle by turning the brass knob in the middle of the gauge counter clockwise until the needles are back together.

Can you unscrew the 1/4" connection from the 3/4" adapter?

Asked by tomtom77 July 28, 2020
4
Answers

I used 3/4” adapter and Installed in under a minute

When installing the gauge how do you ensure it's face is facing me?

Asked by CaliDIYer October 28, 2019
5
Answers

The gauge is on a swivel, so you line up where you want it to face then tighten the collar

Is there a problem with the gauge if the black needle does not return to zero? It returns to 20.

Asked by Clarence June 20, 2019
10
Answers

If you have not taken over the maximum pressure for this gauge and have disconnected it from the spigot, I would say it was defective. If it showed 20 lbs when brand new, it was definitely defective.

I bought this gauge just to check house water pressure because I want to install new irrigation system. It read 50psi

Asked by Charles May 22, 2019
5
Answers

No it is not normal, return to where you purchased it at.

Is the dial 3” in width?

Asked by Lane May 19, 2019
8
Answers

2 1/2 "

Will this tell me if a have a leak

Asked by D2 November 28, 2018
10
Answers

Yes, indirectly, but definitely can be used to indicate possible leak(s). Attach gauge, read pressure, turn off supply, watch for a pressure drop on gauge. If pressure drops, water is likely 'leaking' somewhere. Finding the reason might take some investigating. The smaller the leak the longer it may take for the gauge to show a pressure drop. Small leaks can be difficult to find. Can be an internal leak; toilet, washing machine. Hot water heater or boiler can leak small amounts inside that might not show as they evaporate due to heat. Piping, fittings, might 'leak' inside walls. etc. Supply lines to sinks can leak inside and under cabinets. Leaks can be hidden in walls, ceilings, floors, etc. There can also be leaking components in systems with wells that can allow pressure to leak back into well without any visible 'leaking water.' Finding the cause for the gauge pressure drop can require extensive investigating but this gauge can certainly be useful in detecting pressure drops indicating a 'leak,' in all the many ways leaks can exist.

Is this gauge lead free?

Asked by Bob February 11, 2018
5
Answers

It very well may. The cardboard backing in the blister pack states: "This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm."

My red needle is slammed by water hammer, and the black needle will hit it like a cue ball and re...

Asked by Darrel January 27, 2018
10
Answers

You could take the gauge apart by removing the two screws on the back side and pulling the metal cover off. You might then be able to wind some fine wire between the red needle and the plastic cover. That could provide some resistance against moving the red needle so easily.

3/4 in. Plastic Water Pressure Test Gauge - page 2

Customer Reviews

  • 4.1
    out of 512 reviews
  • 73% recommend this product
Filter by:
Showing 1-10 of 512 reviews
simple water pressure gauge
I used this to measure my pressure from an outdoor spigot, and then removed the outside connection and added it to my hot water heater line next to my expansion tank so I can always monitor the pressure by the heater. Some people complain the max dial is too loose - it's designed that way and works perfectly. I carefully set it right next to the black dial, and then let it be. After a week my max pressure was about 82psi. Easy to read dial, numbers are large and legible. Only complaint is the spigot attachment was extremely difficult to remove. It had some sort of glue, not sealant. But it works and measures accurately.
by JayM
3 people found this helpful
The gauge works good for checking your pressures. I used it to sett the pressure on my sprinkler ...
The gauge works good for checking your pressures. I used it to sett the pressure on my sprinkler system and to monitor pressures from my well. I did leave it on my faucet during a rain storm and it got water on the inside of the meter lens, otherwise I would give it 5 stars.
by 68cs
1 person found this helpful
Simple and easy to use. Needed this to check water pressure to properly inflate the expansion tan...
Simple and easy to use. Needed this to check water pressure to properly inflate the expansion tank on my water heater
by Woodworker
2 people found this helpful
Installed easily. No leaks. No pressure indicated. Needle on opposite side of post from zero psi....
Installed easily. No leaks. No pressure indicated. Needle on opposite side of post from zero psi. Wanting to check pressure and the low cost of gauge... attempting to fix was easy. Clear lid came off with little effort. Managed to push needle in opposite direction, slipping and catching, until resting at zero psi and... it worked. Confirming neighbors psi of 92. Not sure how the needle got on wrong side of stop and under tension. Gauge has worked since indicating slight pressure changes. No sign of package tampering. Just got the bad one I guess.
by HomeDepotAddict
Response from WattsWaterOct 18, 2019
Hello,

I'm sorry to hear you had trouble with this pressure test gauge. We would like the opportunity to help: please contact us via the form on our website or at the phone number below.

Best,
Watts team
1-978-689-6066
Support Hours: M-F, 8:00 a.m. - 5:00 p.m. ET Watts
6 people found this helpful
I work for Gulf Coast Realty LLC in Fort Myers, Florida. I had a customer buying a high end cond...
I work for Gulf Coast Realty LLC in Fort Myers, Florida. I had a customer buying a high end condo and they were worried about the water pressure. I put it on the washer hook up tap and it showed 53lbs slightly above the recommended amount. It gave everyone piece of mind and allowed my transaction to go through with confidence.
by Joe
3 people found this helpful
I only needed one gauge, but I bought two. This Watts 'IWTG' in the Plumbing department and I bo...
I only needed one gauge, but I bought two. This Watts 'IWTG' in the Plumbing department and I bought a Rain Bird brand from the Irrigation department a couple of aisles over. I wanted to test the calibration between the two as I repaired our home's pressure reduction valve to reduce the inside pressure to about 50-55 psi. I hung the two gauges on both front and rear hose bib faucets and never did the two gauges read more than a 2-3 psi difference. I'm satisfied with this Watts gauge, and I recommend it as a good value. And I really only needed one of these, as it turned out.
by Malakitiyan
17 people found this helpful
I purchased this water pressure test gauge after having a faulty water pressure reducing value re...
I purchased this water pressure test gauge after having a faulty water pressure reducing value replaced. As the reducing value was going out, our water pressure would jump to extremes. That along with defective PEX pipe resulted in three leaks in our home. The plumber that replaced the pressure reducing value had a test gauge similar to this one. His however was heavy and of much better quality than this one. He recommended I buy one and test my pressure monthly. I looked for one similar to his but this was the best could find. It only takes a few minutes to hook it up to the front yard water line to check the pressure. This gauge is plastic and feels kind of flimsy but I've used it four months and it's hold up nicely.
by astonman
5 people found this helpful
It works
The pressure gauge has a thread to connect to test points (like on backflow prevention devices), and it has an adapter attached to connect it to a hose bib. It took a lot of force to unscrew the adapter. I stripped the adapter. It seems like it was glued in. I used PTFE tape to re-attach it. I took it apart. I think how it works is the water fills the flat copper tube, causing it to inflate, which pulls on the gear thing which rotates the needle.
by lamp
11 people found this helpful
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.
by congmomo
10 people found this helpful
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.
by
20 people found this helpful
Showing 1-10 of 512 reviews