Best Compression Union Fittings (March 2024) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

Legines Brass Compression Tube Fitting, Comp Union Coupling Assortment Kit 1/...

9.8
CPR Score
Top 2

Dorman 800-202 High Pressure Compression Union Rated For 5000 PSI 3/16 In.

9.8
CPR Score
Top 3

Metalwork Compression Union Brass Tube Fitting, 2pcs (1/4" OD x 5/16" OD)

9.6
CPR Score
Tips


Our Compression Union Fittings Ranking is based on our detailed analysis of 1,054 Compression Union Fittings and over 637 customer reviews. We have compiled the top 30 Best Compression Union Fittings you might be interested in and ratings based on product features.

* Cherrypicksreviews.com is reader-supported, Our editor review, and recommend the best products based on extensive data analysis, if you click on the product links, we may earn a commission through qualifying products purchased.

The Best Compression Union Fittings Rated by CherryPicks

Market Overview
Compression Union Fittings Reviewed
  • Reviews Analyzed: 637 Items
  • CPR Avg. Rating: 8.6 / 10
30 Products Evaluated
  • Highest Price: $40.54
  • Lowest Price: $2.89
  • Avg. Price: $18.13
Price Disclaimer

Top 30 Compression Union Fittings on Amazon (Verified You can Buy)

Legines Brass Compression Tube Fitting, Comp Union Coupling Assortment Kit 1/8", 3/16", 1/4", 5/16", 3/8" & 1/2" 6 Sizes (22 Pcs)

Legines
1.0 Pounds

Ratings for Legines (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Legines -

Features

Kit contains 6sizes: 1/8"(2 pcs), 3/16"(10 pcs), 1/4"(4 pcs), 5/16"(2 pcs), 3/8"(2 pcs) and 1/2" (2 pcs)compression coupling, total 22pcs.
Each assortment contains a specific collection of fast moving fittings that should be kept on hand when working with automotive hydraulic braking systems.
Show More

Dorman 800-202 High Pressure Compression Union Rated For 5000 PSI 3/16 In.

Dorman
800-202
0.91 x 3.15 x 5.71 Inches

Ratings for Dorman (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Available in many different styles, including elbows, union, and tees
A large variety of tube diameters and pipe sizes available
Show More

Metalwork Compression Union Brass Tube Fitting, 2pcs (1/4" OD x 5/16" OD)

Yoebor
62

Ratings for Yoebor (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Metalwork -

Features

Union for connecting and disconnecting two tubes more easily than with a coupling
Compression tube connections on both ends
Show More

Parker A-Lok 4RU2-316 316 Stainless Steel Compression Tube Fitting, Reducing Union, 1/4" Tube OD x 1/8" Tube OD

Parker
4RU2-316

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Nygmat 8,919

Features

Reducing union fitting for connecting and disconnecting two tubes with different diameters
1/4" tube OD connection on one end and 1/8" tube OD on the other
Show More

5/8-Inch A/C Compression Union

S.U.R. and R Auto Parts
AC58
2.6 x 1.0 x 1.0 Inches
0.04 Pounds

Ratings for S.U.R. and R Auto Parts (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
JBTools 232

Features

Reliable 5/8-inch A/C compression union — Aluminum line size: 5/8-inch
American Quality - Proudly Made In America
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Boeray 5pcs Brass Tube Fitting, 5/16" to 5/16" Compression Union Fitting

boeray

Ratings for boeray (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Boeray Hardware 8,853

Features

Material:CA 360 brass,high quality, provide high resistance to abrasion and corrosion.
Size: 5/16" x 5/16"
Show More

Parker Hannifin 62NTA-12 Brass Air Brake-NTA Union Fitting, 3/4" Compression Tube x 3/4" Compression Tube

Parker
62NTA-12
2.7 x 1.3 x 1.3 Inches
1.0 Pounds

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SIM Supply, Inc. 3,251
First Harmonic Limited -
Terrific Ure 2 -

Features

D.O.T. Compression style fittings for repairing truck and trailer air brake lines
For Use in air brake Systems on semi-trucks, trailers, buses, mobile equipment and farm implements
Show More

Parker Hannifin P4BU4 Fast & Tite Polypropylene Bulkhead Union Fitting, 1/4" Compression Tube x 1/4" Compression Tube, Black

Parker
P4BU4
2.25 x 0.75 x 0.75 Inches

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
First Harmonic Limited -

Features

Installs in seconds without tools
302 stainless steel grab ring for tube retention
Show More
Top 9

Vis Brass Compression Tube Fitting, Union, 1/2" OD x 1/2" OD (Pack of 5)

Vis

Ratings for Vis (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Vis HomeYard -

Features

Union for connecting and disconnecting two tubes more easily than with a coupling
Compression tube connections on both ends
Show More

Parker Hannifin 62C-4 Brass Union Compression Fitting, 1/4" Compression Tube x 1/4" Compression Tube

Parker
62C-4
3.2 x 3.0 x 0.5 Inches
0.0006 Pounds

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

All brass construction
Economical
Show More

Parker Hannifin P4UC4 Fast & Tite Polypropylene Union Connector Fitting, 1/4" Compression Tube x 1/4" Compression Tube, Black

Parker
P4UC4
1.5 x 0.75 x 0.75 Inches
0.01 Pounds

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Installs in seconds without tools
302 stainless steel grab ring for tube retention
Show More

Dorman 490-022 Compression Fitting-Union- 3/16 In., 10 Pack Universal Fit

Dorman
490-022
3.19 x 2.38 x 1.5 Inches

Ratings for Dorman (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Autoplicity ✅ 1,143

Features

Available in many different styles, including elbows, union, and tees
A large variety of tube diameters and pipe sizes available
Show More

Parker Hannifin P10TU10 Fast & Tite Polypropylene Tee Union Fitting, 5/8" Compression Tube x 5/8" Compression Tube, Black

Parker
P10TU10
3.5 x 2.5 x 1.25 Inches
0.11 Pounds

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
First Harmonic Limited -

Features

Installs in seconds without Tools
302 stainless steel grab ring for tube retention
Show More

Parker Hannifin P6UC6-pk10 Fast & Tite Union Connector Fitting, Polypropylene, 3/8" Compression Tube x 3/8" Compression Tube, Black (Pack of 10)

Parker
P6UC6-pk10

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
PartsGopher -

Features

Installs in seconds without tools
302 stainless steel grab ring for tube retention
Show More

Parker Hannifin 62C-5-pk5 Union Compression Fitting, Brass, 5/1" Compression Tube x 5/1" Compression Tube (Pack of 5)

Parker
62C-5-pk5

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

All brass construction
Feature: economical
Show More

Parker Hannifin P6UC4 Fast & Tite Polypropylene Union Connector Fitting, 3/8" Compression Tube x 1/4" Compression Tube, Black

Parker
P6UC4
1.75 x 0.38 x 0.38 Inches

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SEKEGE -
First Harmonic Limited -

Features

Installs in seconds without tools
302 stainless steel grab ring for tube retention
Show More

Parker Hannifin 62NTA-6 Brass Air Brake-NTA Union Fitting, 3/8" Compression Tube x 3/8" Compression Tube

Parker
62NTA-6
2.0 x 0.7 x 0.7 Inches
1.0 Pounds

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
SEKEGE -
First Harmonic Limited -

Features

D.O.T. Compression style fittings for repairing truck and trailer air brake lines
For Use in air brake Systems on semi-trucks, trailers, buses, mobile equipment and farm implements
Show More

Parker A-Lok 4BC4-B Brass Compression Tube Fitting, Bulkhead Union, 1/4" Tube OD

Parker
4BC4-B
0.7 x 0.7 x 2.4 Inches

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SEKEGE -
First Harmonic Limited -

Features

Bulkhead union mounts on a wall or bulkhead to allow connections on either side of barrier
Fitting connects to tubing on either side of a bulkhead
Show More

Parker Hannifin 62NTA-4 Brass Air Brake-NTA Union Fitting, 1/4" Compression Tube x 1/4" Compression Tube

Parker
62NTA-4
1.5 x 0.5 x 0.5 Inches
1.0 Pounds

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Nygmat 8,919
SEKEGE -

Features

D.O.T. Compression style fittings for repairing truck and trailer air brake lines
For Use in air brake Systems on semi-trucks, trailers, buses, mobile equipment and farm implements
Show More
Top 20

Parker Hannifin P6TU6 Fast & Tite Polypropylene Tee Union Fitting, 3/8" Compression Tube x 3/8" Compression Tube, Black

Parker
P6TU6
2.5 x 1.75 x 1.0 Inches
0.05 Pounds

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SEKEGE -
Home Essentials ✅ 143

Features

Installs in seconds without Tools
302 stainless steel grab ring for tube retention
Show More

Hanchengshangwu 304 Stainless Steel Compression Tube Fitting, 1/4 inch, 1/8 inch, 3/8 inch Tube OD, Straight Connect, Double-Ferrule Adapter (1/8inch), Silver

Hanchengshangwu

Ratings for Hanchengshangwu (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
HanChengSHANGWU -
Xiaoyan Department -

Features

Made of stainless steel 304, heavy duty, durable and corrosion resistance.
Used to connect 1/4",1/8",3/8" ,outer diameter tubeHigh
Show More
Top 22

Parker Hannifin P6UC5 Fast & Tite Polypropylene Union Connector Fitting, 3/8" Compression Tube x 5/16" Compression Tube, Black

Parker
P6UC5
1.75 x 1.0 x 1.0 Inches

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SEKEGE -
First Harmonic Limited -
SMARTNSAVE -

Features

Installs in seconds without tools
302 stainless steel grab ring for tube retention
Show More

Swagelok SS-400-6 Stainless Steel Tube Fitting, Union, 1/4" Tube Od

Swagelok
2713C27EA

Ratings for Swagelok (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Thomas Scientific -
C&G Industrial Supply -
ABM industrial supply -

Features

Package Dimensions: 9.6 H x 1.7 L x 7.2 W (centimetres)
Package Weight: 0.035 kilograms
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Anderson Metals 00560-04 Plastic Compression Sleeve, 1/4" (Pack of 25)25

Anderson Metals
00560-04
1.0 x 1.0 x 1.0 Inches
0.0006 Pounds

Ratings for Anderson Metals (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Stock Your Home 205
Aserson 202
PLEXSUPPLY. 774
Evenu 1,747

Fit 12mm Tube OD Brass Compression Union Fitting With Copper Ferrule Ring Water Gas Oil

Midzoo

Ratings for Midzoo (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
fu283281998 -

Features

Fit 12mm Tube OD Brass Compression Union Fitting With Copper Ferrule Ring Water Gas Oil

Beduan 5/16" Tube ID Brass Compression Fitting, Insert Tube Support Compression Sleeve Fitting (Pack of 10)

beduan
1zq-10714-lin
0.0022 pounds

Ratings for beduan (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Beduan 5,464

Features

Tube Size:5/16" ID. 8mm ID
Type: Compression insert.
Show More
Top 27

LTWFITTING Assortment Kit 1/4 3/8 1/2 5/8 Inch OD Compression Inserts, Brass Compression Fittings(Pack of 200)

LTWFITTING
HF63PT46810MIX50
1.0 Pounds

Ratings for LTWFITTING (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
honest-f -

Features

Package Include: 50pcs each size, total 200pcs.
Material: BRASS.
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MENSI 1/4" Aluminum Tubing with Compression Olive Fittings M10x1 Female and Male Nuts, Pilot Burner Tube Pipe Assembly, 39.5" Long

MENSI

Ratings for MENSI (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
MENSI 8,328

Features

Diameter of the aluminum tube is 1/4"
Both Side with M10*1 Male and Female Nut and 1/4" compression fittin olive
Show More

Parker Hannifin 62NTA-10 Brass Air Brake-NTA Union Fitting, 5/8" Compression Tube x 5/8" Compression Tube

Parker
62NTA-10
2.5 x 1.0 x 1.0 Inches
1.0 Pounds

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SIM Supply, Inc. 3,251
First Harmonic Limited -

Features

D.O.T. Compression style fittings for repairing truck and trailer air brake lines
For Use in air brake Systems on semi-trucks, trailers, buses, mobile equipment and farm implements
Show More

LASCO 17-6273 7/8-Inch Compression Brass Union

LASCO
17-6273
2.0 x 1.5 x 1.5 Inches

Ratings for LASCO (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Brass compression union carded
For use with compression connection
Show More

Top 10 Compression Union Fittings - Verified to Buy (Mar. 2024)

Top 10 Compression Union Fittings Brands on Amazon

Here is the list of top-rated brands that were evaluated by CherryPicks.

  • Legines
  • Dorman
  • Yoebor
  • Parker
  • S.U.R. and R Auto Parts
  • boeray
  • Vis
  • Hanchengshangwu
  • Swagelok
  • Anderson Metals

Top 10 Compression Union Fittings Sellers: CPR Seller Rank List

CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.

Rank Name Yearly Feedbacks Avg. Ratings
🥇 Aserson 8,985 4.9
🥈 Stock Your Home 8,629 4.9
🥉 Home Essentials ✅ 8,423 4.5
4 JBTools 7,916 4.8
5 PLEXSUPPLY. 3,578 4.8
6 Autoplicity ✅ 2,948 4.5
7 Evenu 2,248 4.9
8 SIM Supply, Inc. 1,470 4.7
9 Beduan 968 4.9
10 MENSI 691 4.9
View or download top Compression Union Fittings seller & rating report
Aserson [8985] Stock Your Home [8629] Home Essentials ✅ [8423] JBTools [7916] PLEXSUPPLY. [3578] Autoplicity ✅ [2948] Evenu [2248] SIM Supply, Inc. [1470] Beduan [968] MENSI [691] Aserson 20% Stock Your Home 19% Home Essentials ✅ 18% JBTools 17% PLEXSUPPLY. 8% Autoplicity ✅ 6% Evenu 5% SIM Supply, Inc. 3% Beduan 2% MENSI 2%

[Get] Compression Union Fittings Deals (✅Exclusively for Prime)

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When you order a product that is "Amazon Fulfilled," Amazon takes care of the storage, packing, shipping, and customer service for that product. This often ensures quicker delivery and better customer service compared to products that are not fulfilled by Amazon. It also means that the product is eligible for Amazon's return policy.

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Shop Prime Compression Union Fittings Deals

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"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.

Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.


Why Should You Trust Us?

Now hundreds and thousands of Hydraulics, Pneumatics & Plumbing supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Compression Union Fittings to buy for new March 2024?

CherryPicks’s Methodology for Evaluating Compression Union Fittings

We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Hydraulics, Pneumatics & Plumbing items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.

We collected and analyzed 1,054 of Compression Union Fittings reviews based on our selection criteria. It helped us shortlist the top qualified and rated Compression Union Fittings for Hydraulics, Pneumatics & Plumbing, We found that most customers choose Compression Union Fittings with an average price of $18.13, and the top brands are Dorman, Parker, LASCO, Anderson Metals, boeray, beduan, MENSI, LTWFITTING, Legines, Vis, S.U.R. and R Auto Parts, Swagelok, Yoebor, Hanchengshangwu And Midzoo. 

Then our expert-level editors reviewed all those quality items and selected the top 30 Compression Union Fittings for you, We have researched hundreds of sellers and picked the top sellers for Hydraulics, Pneumatics & Plumbing, including Aserson, Stock Your Home, Home Essentials ✅, JBTools, PLEXSUPPLY., Autoplicity ✅, Evenu, SIM Supply, Inc., Beduan, MENSI, Nygmat And Boeray Hardware. The Legines Brass Compression Tube Fitting, Comp Un... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 33 consumers with an average rating of 4.3.

We've helped a lot of satisfied users get the right Industrial & Scientific product based on their needs, and save lots of time for them to pick Compression Union Fittings to buy.


Written By Ronald M. Bieber

Ronald M. Bieber has rich experience as a science lab instructor in a college and this has provided him with the right requisite knowledge and experience to be a professional in the act of spotting the right and wrong product. He would be helping us make the right choice in this regard.