The 30 best compression fitting brands in 2026
Swagelok, Ham-Let and Watts lead our ranking of 30 compression fitting brands.
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1
Swagelok
Fred Lennon founded the Swagelok Company in 1947 to provide the best products to customers. It specializes in fittings and insists on prioritizing quality, integrity, and customer preferences. The company is constantly looking for better ways to cater to its customers and improve their experience. Each experience is used as a learning experience. Be it their alloys, system designs, or other services. Swagelok Company gives each endeavor its all.
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2
Ham-Let
Ham-let is your one-stop shop for all of your technical gadget needs. Ham-let has it all, from power cables to adaptors to USBs and OTG cables. It also has printers, tablets, and notebook accessories. Storage and power management devices are also available. Whatever you're looking for, whether it's audio, video, picture toys, networking gadgets, LED lighting, Linux, Mac, and other computer accessories, you'll find it here.
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3
Watts
Watts is the greatest-quality maker of pressure-relieving valves and relief devices that keep water heaters and boilers running safely. Steam traps, check valves, safety relief valves, and other related accessories are all available from Watts. Watts Water Technologies is a world leader in water valve and control device production. More than 60,000 clients utilize their solutions to safeguard health and safety, equipment, and building contents worldwide.
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Ranks 4 to 30
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4
Fernco
Ferno has been manufacturing and retailing plumbing parts and solutions for over fifty years. The brand makes couplings, wraps, packs and seals for lavatorial equipment. Its collections boast strong withstanding power, high-grade material and innovative product design to ensure the best result for its customers. It is a proud American make brand as well. Fernco offers XL, shielded, stock couplings, etc., while having quality certifications like ASTM and CSA. It also is environmentally conscious with its choices regarding raw materials and output.
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5
Parker Hannifin
Parker Hannifin is a brand that produces tools for linear motion applications. They ensure their customers that the products they sell are of good quality and even provide instructions on how to select their products. Some of the products are cartesian robots, controllers, servo drivers, belt-driven linear actuators, rotary positioners, etc. The site also provides a virtual engineer option where the customers can ask questions about the products they want to buy.
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6
LASCO
When it comes to pipes and plumbing, homeowners or corporate maintenance staff turn to Lasco for all their needs. If you need your pipes fixed in your home or commercial property, Lasco plumbing parts have got your back. Using the store locator feature on their website, you can find your nearest Lasco store and drop by anytime to pick the parts best suited for your projects. They are a one-stop solution for all your plumbing needs.
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7
Eaton
Eaton is a power management firm that aids in improving how its clients handle mechanical, hydraulic, and electrical power. They are committed to enhancing people's quality of life and safeguarding the environment for all through power management technologies and services. They create and produce electrical components that are marketed to consumers all over the globe. Their mission to develop long-term solutions that enable prosperity for everyone inspires them.
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8
BrassCraft
BrassCraft is a company that focuses on manufacturing the best plumbing products. They tend to listen to the customers' demands and make decisions to create new products based on the feedback. This ensures that the company has a 100% success rate in all its ventures. BrassCraft was founded in 1946, and they have been providing excellent service to date. All their products are made with the highest quality materials. They keep on developing their products with modern innovation and technology.
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9
Legris
If you have concerns regarding the quality of the product for some essentials, then don't worry. With Legris products, ranging from push-in fittings to adaptors and manifolds, they have everything...
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10
Weatherhead
For over 75 years, since its founding in 1945, Mark Weatherhead Ltd. has been a reputed and respected company dedicated to serving the needs of the agricultural community with their...
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11
Flair-It
Flair-It is your one-stop-shop for all of your PEX plumbing requirements. They care for everything, including installing pipes, fittings, and supplies. They are made to fulfill industrial requirements with more...
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12
Imperial Eastman
Founded in 1958, Imperial Eastman is a distributor of high-quality maintenance products across the US. The company has a very established network of retailers and dealers nationwide, making it available...
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13
Lawson
Lawson begins by collaborating with its clients to create an organized storage system and a restocking timetable depending on usage. By enhancing productivity and efficiency, the Lawson Representative may assist...
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14
Aignep
Dal 1976 realizziamo valvole industriali, elettrovalvole e raccordi per fluidi, aria compressa, gas. Scopri il catalogo completo.
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15
Hansen
Hansen Baby HansenBaby - Unique and Trendy Handmade Baby Items
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16
Smith-Blair
Smith-Blair takes care of its client's wide range of complex requirements and technological demands spanning industries from communications, gas, water, and many more. These technology solutions aim to facilitate the...
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17
Uponor
Innovative plumbing solutions have been developed and distributed worldwide by Uponor. They provide a wide selection of equipment, ranging from pipes and valves to heating systems and home automation. Their...
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18
SMC
SMC is a candle company that takes pride in manufacturing the best quality, handcrafted candles. They have something for everyone and every occasion in their extensive collection. The candles are...
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19
NIBCO
Laid out in 1904, Nibco is presently the main valve, fittings, and flow control manufacturer. Settled in Elkhart, Indiana, Nibco is notable for keeping up with the nature of items,...
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20
Spears
Winning is the goal of many but can be achieved by few. In the racing games, one requires a team that puts together people to make the racer win, and...
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21
John Guest
Push-fit devices by John Guest are simple to construct, dismantle, and clean. The plastic fittings are connected by pressing on a collar, which tightens the connection with a quarter turn....
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22
Grainger
Grainger is an industrial supply distribution company offering multiple products and services to serve customers worldwide. The company majorly supplies other businesses looking for quick delivery of products such as...
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23
Enerpac
Enerpac manufactures and supplies industrial tools and services. The company promises to simultaneously offer safe and high-quality tools to increase productivity and security. Enerpac also provides extensive training to personnel...
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24
Viega
Viega is a family-owned company that deals with developing and producing fashionable taps that were mainly supplied to the pubs and breweries. At the earlier stage itself, this company had...
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25
Festo
Festo Didactic is your ideal technical education partner. They provide educational tools for teaching vocational and technological courses efficiently. Students may discover how objects function and are made in practical,...
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26
B&K Precision
B&K Precision Corporation has built a reputation for excellence in the design and manufacture of dependable and cost-effective test and measurement instruments for more than 60 years. Design, research and...
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27
Victaulic
Victaulic is a leader in manufacturing pipe joining solutions and flow control products used in different industries like Plumbing and Waste treatment. The company's products help reduce risks and increase...
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28
Canplas
World-class supplier of high-quality residential and commercial plumbing products, the brand Canplas they have a wide range of products to fit anyone’s needs. Their residential plumbing products are highly rated...
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29
Dynapex
Founded in 1999 in Nevada, USA, Dynapex is a high-performance fittings manufacturing company. The company provides a variety of top-quality, reliable, long-lasting, and tested products such as breathers, mufflers, valves,...
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30
GF Piping Systems
The global leader in the design and production of piping systems, GF Piping Systems is an Industrial Machinery Manufacturing Company. Its mission is to provide safe, reliable water, chemicals, and...
"Shop" links open Amazon search results for that brand. We may earn a commission; it does not affect the order of this list.
| Brand | Website | X / Twitter | YouTube | ||
|---|---|---|---|---|---|
| Swagelok | swagelok.com | /swagelok | – | @swagelok | swagelok |
| Ham-Let | english.hamletcom.com | /pages/Hamlet/1836582526458 | – | – | – |
| Watts | watts.com | – | – | – | – |
| Fernco | fernco.com | /Fernco | – | @ferncoinc | Ferncojoe1 |
| Parker Hannifin | parkermotion.com | – | – | – | – |
| LASCO | lasco.net | – | – | – | larsensupplycompany |
| Eaton | eaton.com | /eatoncorporation | – | @eatoncorp | – |
| BrassCraft | brasscraft.com | /BrassCraft | brasscraft | @brasscraft | brasscraft |
| Legris | legris.com | – | – | – | – |
| Weatherhead | markweatherhead.co.uk | /markweatherheadltd | mark_weatherhead_ltd | @@MWeatherheadLtd | – |
Compression Fittings Buying Guide
Compression fittings are widely used in plumbing and gas fitting applications. They are designed to form a leak-proof connection between two pipes or tubes, by compressing a sealing ring or ferrule onto the pipe/tube. Compression fittings are an excellent choice for a wide range of applications, as they require no soldering or welding, and can be easily installed by hand. However, choosing the right compression fittings for your needs can be a bit challenging, as there are many varieties available in the market. In this article, we'll guide you through the process of selecting the best compression fittings for your application.
Types of Compression Fittings
Before we dive into the details of selecting the right compression fittings, let's first take a look at the different types of compression fittings available in the market:
- Straight Coupling
- Elbow Coupling
- Tee Coupling
- Reducer Coupling
- Male Elbow Coupling
- Female Elbow Coupling
- Male Branch Tee Coupling
- Female Branch Tee Coupling
- Male Run Tee Coupling
- Female Run Tee Coupling
Each of these types of compression fittings serves a specific purpose and is designed to connect pipes/tubes of different sizes or shapes. Straight couplings are used to connect two straight pipes/tubes; elbow couplings connect pipes/tubes at an angle; tee couplings are used to create a T-junction; reducer couplings connect pipes/tubes of different diameters; and so on.
Materials
Compression fittings are made of different materials, depending on the application they are used for. Some of the most common materials used in compression fittings include:
- Brass
- Stainless Steel
- Copper
- Plastic (PVC or CPVC)
Brass is the most popular material used in compression fittings, as it is durable, corrosion-resistant, and suitable for both high and low-temperature applications. Stainless steel compression fittings are also popular, as they offer high strength and are resistant to corrosion and high temperatures. Copper compression fittings are mostly used in plumbing applications, and they offer excellent durability and corrosion resistance. Plastic compression fittings are becoming more common due to their affordability, but they are less durable and less suitable for high-temperature applications.
Size
The size of compression fittings is determined by the diameter of the pipe/tube they are designed to fit. It is important to select the right size of compression fitting, as a too-small or too-big fitting can cause leaks and other performance issues. The size of compression fittings is expressed in either imperial or metric sizes, depending on the country where they are used. In the US, compression fittings are typically measured in inches, while in Europe and other regions, metric sizes are used.
Pressure Ratings
The pressure rating of compression fittings refers to the maximum pressure they can withstand without failing. It is important to select the right pressure rating for your application, as a fitting with a lower pressure rating than required can result in leaks or even burst pipes/tubes. The pressure rating of compression fittings is expressed in pounds per square inch (PSI) or bars.
When selecting compression fittings for your application, make sure to consult the manufacturer's specifications to ensure that the fittings can handle the intended pressure and flow rate. If you are unsure about the right pressure rating for your application, consult with a professional plumber or gas fitter for advice.
Ferrules
Ferrules are the small metal or plastic rings that are placed over the pipe/tube before the compression nut is tightened. The ferrules are designed to create a seal between the fitting and the tubing, preventing leaks. Ferrules come in different materials, including brass, copper, and plastic. Brass ferrules are the most popular and are suitable for both high and low-temperature applications. Copper ferrules are mostly used in plumbing applications, while plastic ferrules are less durable but more affordable.
When selecting ferrules for your compression fittings, make sure to choose the right material and size. It is important to ensure that the ferrules match the diameter of the pipe/tube and that they are designed for the intended pressure and temperature.
Compression Nuts
Compression nuts are the circular nuts that are tightened over the ferrules to compress them onto the pipe/tube, creating a seal. Compression nuts come in different materials, including brass and stainless steel. Brass nuts are the most popular and are suitable for both high and low-temperature applications. Stainless steel nuts offer high strength and corrosion resistance but are less ductile than brass nuts.
When selecting compression nuts, make sure to choose the right material and size. It is important to ensure that the nuts match the diameter of the pipe/tube and that they are designed for the intended pressure and temperature.
Installation
Installing compression fittings is relatively easy and requires no special tools. Here's a step-by-step guide to installing compression fittings:
- Cut the pipe/tube to the desired length.
- De-burr the cut edge of the pipe/tube to remove any sharp edges or burrs.
- Slide the nut onto the pipe/tube followed by the ferrule.
- Insert the end of the pipe/tube into the compression fitting until it reaches the bottom.
- Tighten the nut over the ferrule, using a wrench or pliers, until it is snug.
- Hold the fitting with one wrench or pliers and tighten the nut with another wrench or pliers until it is tight.
- Check for leaks by turning on the water or gas and observing the fitting for any signs of leakage.
Remember to follow the manufacturer's instructions when installing compression fittings, as some fittings may require additional steps or precautions.
Conclusion
Compression fittings are a reliable and easy-to-use solution for connecting pipes/tubes in plumbing and gas fitting applications. When selecting compression fittings, it is important to consider the type, material, size, pressure rating, ferrules, and compression nuts. By following the guidelines outlined in this article, you can select the best compression fittings for your application and ensure a leak-proof connection that will last for years to come.
