Best Air Hose Fittings of 2021 (Complete Round-Up)

Cody
| Last Updated: January 30, 2021

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Choosing the correct fitting for your hose and air compressor can be confusing. There are four different types of fittings to choose from, and wrapping your head around the working of each is no easy task.

Below is all you need to understand fittings and what you look for when buying one.

Hoping to cut right to the chase? Below are the best air hose fittings:

  1. Milton Industries S-765
  2. Prevost PRVURC061201
  3. WYNNsky Air Hose Fittings

Comparison of the Best Air Hose Fittings

Product

Our Rating

Price

Milton Industries S-765

  • High flow coupler
  • HVLP applications
  • 300 PSI Max inlet pressure

Prevost PRVURC061201

  • Safety connection button
  • Quick coupling mechanism
  • Non-scratch sturdy material

WYNNsky Air Hose Fittings

  • Best for the Money
  • Universal couplers
  • 14 piece accessory kit

SunGator Air Coupler Set

  • Best Air Hose Coupler
  • 16 piece accessory kit
  • Corrosion resistant brass

Milton 5 in ONE Universal Safety Exhaust Quick-Connect

  • Best Air Hose Quick Connect
  • Safety air bleeder system
  • Universal coupler kit

What Size of Air Hose Fittings Do I Need? 

Air hose fittings come in various sizes. These sizes all greatly affect the rate of air flow provided. In the following section, you’ll find some key information that’ll help you understand fitting sizes a bit better. 

What Is The Standard Size For An Air Hose? 

Fittings are most commonly made from just a handful of metals, including aluminum, steel, zinc, brass, and bronze. The most common sizes for these fittings are either ¼ inch or ⅜ inch. They come as male or female types. You can get several different sizes like ½ or ⅛, but ¼ and ⅜ are the standards. 

How To Measure Air Hose Fittings

The most common way to measure your air hose fitting is by taking a string and wrapping it around the hose until both ends are touching. Measure the length between the two points by using a measuring tape. 

You'll now have the circumference of the hose, divide this number by pi (approximately 3.1416), and that will give you the diameter, allowing you to find then a fitting that suits. 

Air Hose Fitting Types 

There are quite a few different types of fittings currently on offer. Air hoses utilize three main fittings, swivel fitting, coupler and a plug. We’ve explained what they do in more detail below.  

Air Hose Swivel Fitting

When you're operating a compressor hose, you'll constantly be moving around and twisting the hose to get into different positions when working. These twists, which seem harmless at the time, can, in some cases, decrease your hoses life expectancy by 90%. With a swivel fitting, your hose can turn 180 degrees without detachment to help accommodate for all those twists and turns. 

Air Hose Coupler

A coupler is a connection fitting at the end of a hose. The coupler allows the users to connect to pneumatic tools, other hoses, or compressors. Couplers are made from various materials, including brass, bronze, steel, zinc, and aluminum. 

Air Hose Plug

Plugs are used to connect on to couplers to maximize airflow from the hose to the pneumatic air tool. They come in different styles, such as Automotive, Industrial, V-style, and ARO. The most common sizes for these are ¼ or ½. The larger the opening, the more air that can flow through it. The sizes of these aren't referring to fitting but the amount of airflow that the plug can handle. 

Review of the Best Air Compressor Hose Fittings 

In the previous section, we explained the various fittings and how to accurately find what one suits your needs. In this section we will show you some of our favorite hose fittings and go into detail about their various features, as well as pro’s and con’s.  

Best Overall:
Milton Industries S-765

PROS

  • You receive a 16-piece kit with a carry case
  • The easy attach mechanism requires just one hand
  • The maximum working pressure is 300 PSI, far more than needed
  • They're made from brass, which is durable and resilient from corrosion

CONS

  • Not universally compatible

Our Review

These fittings are a great "fit" for an air compressor for a few reasons. The solid brass material is what limits the risk of corrosion compared to other materials. The 16-piece brass fittings are built to last and provide the user with an assortment of options when operating a compressor. 

The 300 PSI working pressure is another reason it's best coupled with a compressor as these fittings can be used alongside most pneumatic tools. The only downside is that they're not universally compatible as they only work with M and D type. 

What Makes This Product Stand Out?

The brass fittings are what makes this product so special. Without this material, the lifespan of the fittings would be significantly reduced. Materials like aluminum, bronze, zinc, and steel corrode faster than brass. 

Runner-up:
Prevost PRVURC061201

PROS

  • Can provide a flow rate of 29 CFM with up to 174 PSI
  • Non-scratching material protects against any accidents
  • Operates effectively between temperatures of 5F and 158F
  • Simple design means you can't mess up connecting this coupler

CONS

  • There are a few tools that this coupler can't be used with

Our Review

Our runner-up coupler is a female Truflate style safety coupler operating with an automotive basic ¼ airflow. The simple blue body and red button connection make this coupler a lot easier to connect. The coupler can accommodate PSI between 0 - 174, which will allow most pneumatic tools except a few. 

The coupler is best used in temperatures between 5F and 158F, which is suitable for most times throughout the year, the apparent downside being winter. The protective high-quality plastic casing is another feature as this protects against scratches or everyday accidents. 

What Makes This Product Stand Out?

The connection mechanism and design are what makes this coupler stand out from others. With most couplers, it would be a push or pull motion to either connect or disconnect. With this, you need to hold the red button-down, and you're disconnected while safely releasing the pressurized air. 

Best for the Money:
WYNNsky Air Hose Fittings

PROS

  • The couplers are universal
  • Easy and fast coupling with a simple push
  • The bright color makes it hard to lose them
  • Comes with all the parts necessary for a compressor

CONS

  • The aluminum material doesn't last long as it begins to erode

Our Review

The 14-piece air compressor accessory kit is excellent value for money. You get a whole range of universal ¼ couplers and plugs. The universal fittings all have a red coating, which means they stick out like a sore thumb if they ever get lost. 

You've got a simple connection mechanism built into the coupler as it's just a simple push to attach. The fittings are made from aluminum, which isn't the best when it comes to being corrosion resistant, as after time, they begin to wear. 

What Makes This Product Stand Out?

The value for money that comes with this purchase is incredible. You're getting a 14-piece universal fitting set with an easy attachment mechanism for such a low price. The quality you're getting on these couplers is of the highest but for a price that doesn't reflect the quality. 

Best Air Hose Coupler:
SunGator Air Coupler Set

PROS

  • You receive a 16-piece kit with a carry case
  • The easy attach mechanism requires just one hand
  • The maximum working pressure is 300 PSI, far more than needed
  • They're made from brass, which is durable and resilient from corrosion

CONS

  • Not universally compatible

Our Review

These fittings are a great "fit" for an air compressor for a few reasons. The solid brass material is what limits the risk of corrosion compared to other materials. The 16-piece brass fittings are built to last and provide the user with an assortment of options when operating a compressor. 

The 300 PSI working pressure is another reason it's best coupled with a compressor as these fittings can be used alongside most pneumatic tools. The only downside is that they're not universally compatible as they only work with M and D type. 

What Makes This Product Stand Out?

The brass fittings are what makes this product so special. Without this material, the lifespan of the fittings would be significantly reduced. Materials like aluminum, bronze, zinc, and steel corrode faster than brass. 

Best Air Hose Quick Connect:
Milton 5 in ONE Universal Safety Exhaust Quick-Connect

PROS

  • Comes as a set of 5
  • They offer a quick-connect mechanism
  • Will work with many pneumatic air tools
  • The fittings will bleed excess pressure before disconnecting

CONS

  • Can't operate tools that require over 120 PSI

Our Review

These fittings are an outstanding five in one design, offering everything you need to operate your compressor safely. The simple push connection requires just one hand; when you're done, you can safely bleed any excess pressurized air from the hose, limiting the risk of any dangerous whipping. 

They come as a set of five and operate pneumatic tools that require a 120PSI or less. The fittings are all female ¼ which are universally compatible. The only downside is they can't operate any tools over 120 PSI. 

What Makes This Product Stand Out?

This product's standout feature is the ability to safely release any built-up operation pressure by bleeding the hose first and then disconnecting and eliminating the common problem of dangerous whipping. 

Hold up, are you interested in other topics related to air hoses and compressors? If so, these might be something to check out: 

Perks of Getting Some New Air Hose Fittings 

Air hose fittings are an important part of running an air compressor. When you buy a decent quality fitting or kit, you can certainly look forward to various benefits which we’ve outlined below. 

You Feel Safer

Safety is always important, especially when you work in an industrial or construction environment where accidents can be expected. With a quality hose fitting, you'll remove the risk of dangerous accidents like hose whipping by bleeding the hose first. 

You Won't Have Leaking

Poorly made fittings aren't as secure. Tight fits are always essential because if they're loose, then it'll just leak far too much-pressurized air, meaning you'll lose quality time and effort on trying to fix this problem. High-grade fittings are reliable enough not to leak as they're made from materials like brass. 

You Can Operate Any Pneumatic Tool

Suppose you're looking at getting new fittings. Always know what tools you plan on mainly using. If you have air tools that require a lot of PSI, try to get fittings to withstand 300 PSI as most pneumatic air tools require less than this. With 300 PSI Max working pressure, you'll be able to operate any tool you want. 

Conclusion 

Fittings can first be confusing to wrap your head around. There's so much jargon involved. Hopefully, we've given you all the information along with enough recommendations you need to make a decision. Remember, brass is best, and try to get universally compatible fittings to make life easier. 

People Also Ask

With all the information above, you should be able to make an informed decision. However, as an extra, we've also answered some of the most commonly asked questions on air hose fittings below. 

How To Connect Air Hose Fittings 

  • Most air hoses come with a male fitting already attached.

  • If this is the case, wrap some sealant or tape around the threaded male fitting to limit Leaking

  • You then fit the female part to the other end of the hose and wrap that with Teflon tape 

  • Now all you need to do now is attach the male side of the hose to the female compressor coupler 

What's The Difference Between A Manual And An Automatic Coupler?

An automatic coupler is a lot easier to use as it doesn't require you to pull or push on the coupler to make the connection. You push it in, and it makes the connection itself. However, with a manual coupler, you have to pull back the collar to make the connection. 

Why Are Some Fittings Color Coded?

Some manufacturers understand that many new fittings can get confused about what the different fittings can be used for. So, they came up with a color-coded system to help make things easier for people to wrap their heads around.

What Is The Color Coding System?

Like we mentioned above, the system is designed to make people understand the different fittings and plugs. 

  • ARO (A-Style) is green

  • Industrial (M-Style) is red

  • V-Style is purple 

  • Automotive (T-Style) is blue

Cody

My name is Cody and I've been a writer for Tool Tango for quite some time now. I've always had a knack for building things with my hands and creative writing, so being able to combine the two has been great. I love being able to give back to the DIY-community, while also learning a thing or two along the way. When I'm not writing, I enjoy watching Netflix with my girlfriend, fishing, and working in the shop.