Yellow Jacket Mechanical Manifold Gauge Set, 2 Valve, 3 Hoses, Vacuum Port Size 1/4 in 42004-1 Each
Condition: New
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Availability:
16 left in stock
Arrives
Monday, Aug 10
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Features
- Made in United States
Description
Includes 60" Plus Ii Hoses with Standard 1/4" Flare Fittings Large 3-1/8" Gauges Large, Easy-Grip Handles For Use with R-22, R-404A, R-410A - Manufacturer: Yellow Jacket.
Brand: Yellow Jacket
Material: Brass
Item dimensions L x W x H: 12.9 x 13 x 4.6 inches
Item Weight: 2 Pounds
Number of Items: 1
Brand Name: Yellow Jacket
Part Number: 42004
UPC: 686800420042 787269969063
Global Trade Identification Number: 42
Manufacturer: Fotronic Corporation
Model: 42004
Unit Count: 1.0 Count
Material Type: Brass
Thread Style: 1/4-18 Npt
Item Dimensions: 12.9 x 13 x 4.6 inches
Item Weight: 2 Pounds
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If you place your order now, the estimated arrival date for this product is:
Monday, Aug 10
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View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: 41 Manifold with 3-1/8 inches Gauge
My home AC system's evaporator began freezing up recently. This is often an indication that the system is undercharged, most likely due to a leak. I've had service companies come out in the past to fix this system (too frequently, unfortunately) but the quality of the work is always hit and miss. Plus, we're in the middle of AC season and I usually end up waiting up to a couple of weeks for a tech to come out. As much as I keep promising myself that I'll pay people to do the stuff I don't want to do, I often end up doing it myself. OK, DIY it is. I've worked on plenty of mobile AC systems in the past but not very many residential systems. My R22 gauge set is probably 40 years old, doesn't have superheat/subcool temperatures for R410a, and all the hoses needed to be replaced. I decided to go ahead and buy a gauge set. I looked at some that were half the price of this set. They had a 4th port to connect a vacuum pump and a sight glass (both nice features that this gauge set doesn't have), but the reviews were OK at best. R410a is a relatively high pressure and moderately expensive refrigerant and the last thing I wanted was to have a leak or worse. I settled on Yellowjacket as I've used their stuff in the past and it's a good combination of affordability and quality. This is a pretty good set of entry-level gauges. They're legible, the quality seems to be fine, and the handwheels for the valves are metal. I have an R134a gauge set with plastic handwheels and one disintegrated after a relatively mild hit so I've grown to LOATHE plastic handwheels. Using them was straightforward. I connected them to the condenser, purged the lines and connected a tank of 410a. I topped the system off with liquid refrigerant through the low-side line and it was very easy to throttle the valve to prevent hitting the compressor with a big slug of liquid refrigerant. It was also easy to read the temperature on the gauge to get the amount of superheat just right. I'm probably going to add a valve core depressor on the end of the high-side hose. Removing that hose from the condenser dumps a lot of liquid refrigerant and gave me a slight case of frostbite on my index finger. A valve core depressor allows you to close the Schrader valve before removing the hose. Not necessary but it does make working on the system a little nicer. I also recommend getting a bottle of Nylog Blue and lubricating all the fittings on the hose with it. Nylog is a lubricant that helps the fittings seal. It makes threading the connections together easier and reduces the chance of a leak. Again, not necessary but nice to have. I put a tiny drop on the rubber seal in each end of the three refrigerant hoses and a bit more on the threads. Oh, and I found the leak. Looks like I'll be replacing a leaky Schrader valve core on the low-side service port... as soon as Amazon delivers my core removal tool. If I keep this up, I'll have an entire HVAC shop's worth of tools in my garage.
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Reviewed in the United States on July 10, 2023 by Zero Signal
Style: 41 Manifold with 3-1/8 inches Gauge
The product arrived on time and as described.
Reviewed in the United States on May 9, 2026 by Roger Barnes
Style: 41 Manifold with 3-1/8 inches Gauge
Made reliable
Reviewed in the United States on April 19, 2026 by Amazon Customer
Style: 41 Manifold with 3-1/8 inches Gauge
Good
Reviewed in the United States on June 20, 2026 by Esnel
Style: 41 Manifold with 3-1/8 inches Gauge
Gauges and manifold work great reason giving 4 stars is because i need to return it because i can not find a set of gauge boot covers that fit these. The gap between the gauges is very small as u can see and The Yellow Jacket branded gauge boots i bought are to big and rub against eachother, bought a offbrand same thing.
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Reviewed in the United States on March 10, 2022 Reviewed in the United States on March 10, 2022 by Jacob Millard
Style: 41 Manifold with 3-1/8 inches Gauge
Got these for my son who's currently an apprentice to start off his HVAC tool bag. Yellow jacket was hands down the top recommended brand among the professionals I asked and the reviews I read. He'd eventually love to have a digital set, but not only can I not afford those now, he will learn to calculate and not have it done for him which I believe is important in the beginning. Package arrived quickly with no damage. Well packaged.
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Reviewed in the United States on June 1, 2025 by Lindsay
Style: 41 Manifold with 3-1/8 inches Gauge
Everything arrived in good condition as described.
Reviewed in the United States on February 26, 2026 by Sherman Mayle III
Style: 41 Manifold with 3-1/8 inches Gauge
I haven't used them yet but want to address two things I repeatedly read before buy, that gave me some heartburn. 1. Made in Mexico. If mine was, I sure can't tell. Its clearly marked made in USA and 2. arrives damaged. Mine appears to be fine, not a crack or dent anywhere. That is my initial review. If it turns out to have issues once I use it, I come back and document it.
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Reviewed in the United States on June 29, 2025 by Mondavou