Top Compression Union Straight Fittings

The best Compression Union Straights includes Taiidaues 3/16" Brass Compression Fittings (20 PCS), Hooshing Brass Compression Coupling (3 Pack), MuHize 3/16" Compression Tube Fittings (8-Pack) and many others as mentioned below.

1

Taiidaues 3/16" Brass Compression Fittings (20 PCS)

  • Includes 10 brass compression tube fittings.
  • 10 brass compression sleeves ferrules included.
  • Manufactured from high-quality, durable brass.
  • Resists corrosion and wear for longevity.
  • Suitable for oil, gas, and water systems.
  • Max pressure: 2000 PSI, -65°F to +250°F.
  • Easy installation without welding or flaring tools.
  • Average Rating out of 5:
  • Price Range: $9.99
  • Size: ‎10Pcs-3/16" Union,‎3/16
  • Material: Brass
2

Hooshing Brass Compression Coupling (3 Pack)

  • Durable solid brass construction for long-lasting use.
  • Corrosion-resistant for reliable performance in various conditions.
  • Designed for easy connection and disconnection.
  • Compatible with copper, brass, aluminum, or plastic tubing.
  • Ideal for fuel, air, liquid, and gas lines.
  • Includes three 5/16" compression fittings in one pack.
  • High temperature ductility for versatile applications.
  • Average Rating out of 5:
  • Price Range: $7.99
  • Color: Copper
  • Material: Brass
3

MuHize 3/16" Compression Tube Fittings (8-Pack)

  • Easy installation without special tools needed.
  • Durable brass construction ensures long-lasting performance.
  • Compatible with various tubing materials and sizes.
  • Pack of 8 for multiple repair needs.
  • Rust-proof design protects against harsh environments.
  • Secure sealing prevents leaks under pressure.
  • Efficient compression for reliable connections.
  • Average Rating out of 5:
  • Price Range: $12.99
  • Size: ‎0.1875 inch
  • Material: Brass
4

Legines Brass Compression Tube Fitting (2 Pack)

  • Durable brass construction for reliable connections.
  • Includes two compression fittings per pack.
  • Designed for 1/8" OD tubing size.
  • Compatible with copper, brass, and aluminum tubing.
  • Ideal for low and medium pressure applications.
  • Not suitable for steel tubing or gaseous media.
  • Meets ASA, ASME, and SAE standards.
  • Average Rating out of 5:
  • Price Range: $5.99
  • Size: ‎1/8
  • Material: Brass
5

bouti1583 Brass Compression Tube Fittings [2 Pack]

  • Pack of two durable brass fittings.
  • 3/8” OD x 3/8” OD size.
  • Compatible with copper and plastic tubing.
  • Hex head design ensures secure installation.
  • Deep threads for leak-free connections.
  • Three-piece construction for optimal performance.
  • Meets industry specifications and standards.
  • Average Rating out of 5:
  • Price Range: $6.95
  • Size: ‎3/8,‎0.375 inch
  • Material: Brass
6

Anderson Metals Brass Tube Connector [50068-0502]

  • Durable brass construction for long-lasting performance.
  • Compatible with various tubing materials.
  • Easy installation without flaring tools required.
  • Three-piece design for secure connections.
  • Ideal for water, oil, and vacuum applications.
  • Lead content restricts potable water use.
  • Standard fittings include short nuts for convenience.
  • Average Rating out of 5:
  • Price Range: $6.33
  • Size: 1 Count (Pack of 1),1 Count (Pack of 2),1/2" Compression x 1/2" NPT Male,1/2" Compression x 1/4" NPT Male,1/2" Compression x 3/4" NPT Male,1/2" Compression x 3/8" NPT Male,1/4" Compression x 1/2" NPT Male,1/4" Compression x 1/8" NPT Male,1/4" Compression
  • Color: Copper
  • Material: Brass
7

Breezliy Brass 3/8" Compression Union Fitting

  • High-quality brass ensures durability and longevity.
  • 3/8" OD for standard tubing compatibility.
  • Corrosion-resistant for reliable performance.
  • Easy installation without flaring or soldering.
  • Includes Teflon tape for leak prevention.
  • 1-year warranty for peace of mind.
  • Meets ASA, ASME, and SAE standards.
  • Average Rating out of 5:
  • Price Range: $8.99
  • Size: ‎3/8,‎0.375 inch
  • Material: Brass
8

LitOrange Brass Tube Fitting Adapter [3 Pack]

  • Heavy duty brass for lasting durability.
  • Dual couplings for easy tube connections.
  • Corrosion-resistant for reliable performance.
  • Suitable for low to medium pressure applications.
  • Includes nuts and ferrules for convenience.
  • Compatible with various tubing materials.
  • Ideal for fuel and brake line connections.
  • Average Rating out of 5:
  • Price Range: $9.99
  • Size: ‎3PCS 3/8" x 1/4" Compression
  • Material: Brass
9

Anderson Metals Brass Compression Union Fitting

  • Durable brass construction ensures long-lasting performance.
  • Three-piece design for easy assembly and disassembly.
  • Compatible with various tubing types: copper, brass, aluminum.
  • Short nuts simplify standard fitting applications.
  • Ideal for water, gasoline, oil, and vacuum lines.
  • Not suitable for potable water due to lead content.
  • Requires no flaring tool for quick installation.
  • Average Rating out of 5:
  • Price Range: $8.76
  • Color: Copper
  • Material: Brass
10

CDQBWKJGFJ 3 Pcs Brass Tube Fittings

  • Durable brass construction ensures long-lasting performance.
  • Includes three pieces: nut, sleeve, and body.
  • Compatible with various tubing materials and sizes.
  • Easy disassembly; no flaring tool required.
  • Not suitable for potable water installations.
  • Ideal for compression applications and connections.
  • Versatile for use in plumbing and HVAC systems.
  • Average Rating out of 5:
  • Price Range: $7.99
  • Size: Brass Tee 1/2" OD,Brass 1/2" x 1/2",Brass 1/2"OD x 1/2 NPT,Brass 1/2"OD x 1/4 NPT,Brass 1/2"OD x 3/8 NPT,Brass 1/4" x 1/4",Brass 1/4"OD x 1/4 NPT,Brass Tee 1/4" OD X 1/4" OD X 1/8 MNPT,Brass 1/4"OD x 1/8 NPT,Brass 1/8" x 1/8",Brass 1/8"OD x 1/8 NPT,Brass
  • Material: Brass
11

LitOrange Brass Compression Pipe Fittings (3 Pack)

  • Heavy duty brass material ensures durability and strength.
  • 3/8" tube OD x 1/2" NPT male size.
  • Corrosion-resistant for long-lasting performance.
  • Compatible with various tubing materials.
  • Single ferrule design reduces leak potential.
  • Ideal for water, gasoline, and oil applications.
  • Includes three fittings in each pack.
  • Average Rating out of 5:
  • Price Range: $9.99
  • Size: ‎3PCS Straight 3/8"x 1/2"NPT,‎1/2
  • Material: Brass
12

JUWO Brass Compression Union Fitting (1 Pack)

  • High compatibility with various pipe materials.
  • Made from premium high-purity brass.
  • Leak-free performance with precision-engineered compression end.
  • Handles pressures up to 1200 PSI.
  • Temperature range from -65°F to +250°F.
  • Easy installation with three-part design.
  • No soldering or flaring required.
  • Average Rating out of 5:
  • Price Range: $8.99
  • Size: ‎3/4"-1Pack,‎0.75
  • Material: Brass
13

Yoebor Stainless Steel Compression Adapter [2 Pack]

  • Durable 304 stainless steel construction for longevity.
  • Leak-resistant twin ferrule compression fitting design.
  • Connects tubing and NPT male connectors seamlessly.
  • Handles high pressure up to 2900 psi.
  • Wide temperature range from -50 to 450°C.
  • Ideal for oil, gas, and water applications.
  • Pack of 2 for convenient installations.
  • Average Rating out of 5:
  • Price Range: $9.99
  • Size: ‎5/16" OD x 1/4" NPT Male
14

HASAOMOI 3/8" Brass Compression Unions (4 Pack)

  • High-quality CA360 brass construction for durability.
  • Corrosion-resistant for long-lasting performance.
  • Works with 3/8" nylon tubing and air systems.
  • Easy installation with secure compression fitting design.
  • Max working pressure up to 250 psi.
  • Temperature range from -40°F to +200°F.
  • Includes four fittings for versatile use.
  • Average Rating out of 5:
  • Price Range: $9.99
  • Color: Redesigned Air Brake Fitting
  • Material: Brass
15

Goldpea 1/4" Compression Coupler Fittings (2 Pack)

  • Durable stainless steel 304 construction for longevity.
  • 1/4" OD and 1/4" NPT female connector.
  • Pack of 2 for convenient installation.
  • Double ferrule design minimizes leakage risk.
  • Compatible with water, oil, and air mediums.
  • High strength with nominal pressure of 16Mpa.
  • Max temperature tolerance: 450℃/842℉.
  • Average Rating out of 5:
  • Price Range: $9.99
  • Size: ‎1/4" OD x 1/4"Fnpt,‎1/4"
  • Material: Stainless Steel
16

Pysrych 304 Stainless Steel Tube Union [2-Pack]

  • Durable 304 stainless steel construction for longevity.
  • Connects and disconnects pipes easily and efficiently.
  • Suitable for water, oil, air, and corrosive liquids.
  • Compatible with various tubing materials and sizes.
  • Nominal pressure rated at 16Mpa/2900psi.
  • Max temperature capacity of 450℃/842℉.
  • Comes in a convenient 2-pack for value.
  • Average Rating out of 5:
  • Price Range: $7.89
  • Size: ‎1/4" x 1/4" OD
  • Material: Stainless Steel
17

Pysrych 304 Stainless Steel Tee Fitting (1 Pack)

  • Durable 304 stainless steel construction.
  • Leak-resistant twin ferrule compression design.
  • Connects and branches three pipes effortlessly.
  • High working pressure of 2900psi / 20MPa.
  • Wide temperature range: -50 to 450℃.
  • Easy installation and maintenance.
  • Reliable and safe operation in various applications.
  • Average Rating out of 5:
  • Price Range: $29.99
  • Size: ‎0.75 Inch
  • Material: Stainless Steel
18

Goldpea Stainless Steel Compression Union (Pack of 2)

  • Durable stainless steel construction for longevity.
  • Easy connection and disconnection of pipes.
  • Double ferrule design minimizes leakage risks.
  • Operates in temperatures below 450℃.
  • Supports working pressure of 25Mpa-49Mpa.
  • Compatible with oil, water, and gas mediums.
  • Corrosion-resistant for reliable performance.
  • Average Rating out of 5:
  • Price Range: $7.99
  • Material: Stainless Steel
19

TAISHER 1" NPT Female Pipe Union

  • 1" NPT female pipe union for versatile connections.
  • Constructed from durable 304 stainless steel material.
  • Excellent corrosion resistance for long-lasting use.
  • Working temperature range: -65 to 250°F.
  • Maximum working pressure up to 300 PSI.
  • Ideal for various industrial piping applications.
  • Nominal size; actual diameter differs from NPT thread.
  • Average Rating out of 5:
  • Price Range: $14.99
  • Size: 1" NPT,1" MNPT x 1" FNPT,1" MNPT x 1" MNPT,1" FNPT x 1" FNPT(90 Degree),1" FNPT x 1" MNPT(90 Degree),1/2" NPT,1/2" MNPT x 1/2" FNPT,1/2" MNPT x 1/2" MNPT,1/2" FNPT x 1/2" MNPT x 1/2" FNPT(Tee),1/2" FNPT x 1/2" FNPT(90 Degree),1/2" FNPT x 1/2" MNPT(90 Degr
  • Material: Stainless Steel
20

4LIFETIMELINES Brass Compression Unions [10 Pack]

  • Enhances automotive line strength and safety.
  • Corrosion-resistant brass for long-lasting durability.
  • Compatible with various line materials.
  • Ideal for auto, plumbing, and electrical applications.
  • Rust-proof design for harsh conditions.
  • Premium quality ensures reliable performance.
  • Includes 10 units for versatile use.
  • Average Rating out of 5:
  • Price Range: $14.99
  • Size: ‎3/16,‎0.1875 inch
  • Material: Brass
21

Torque Brass Compression Tube Fittings (5 PCS)

  • Durable brass construction for longevity and reliability.
  • Resistant to corrosion for lasting performance.
  • Temperature range: -65F to 250F.
  • Easy installation for quick replacements.
  • Includes five compression fittings for convenience.
  • Compatible with 5/8" OD tubing.
  • Ensures a secure, leak-free connection.
  • Average Rating out of 5:
  • Price Range: $19.98
  • Size: ‎5/8" OD
22

QCDENG 3PCS Brass Compression Tube Connectors

  • High-quality brass for durability and longevity.
  • 3/4" Tube OD connectors for easy fitting.
  • 150Psi maximum working pressure for reliability.
  • Temperature range: -65℉ to +250℉ for versatility.
  • Simple installation with minimal tools required.
  • Teflon tape included for leak prevention.
  • Corrosion and oil resistant for various applications.
  • Average Rating out of 5:
  • Price Range: $18.99
  • Size: ‎3/4" OD x 3/4" OD
  • Material: Brass
23

Legines Brass Compression Tube Fittings (22 Pcs)

  • 22-piece brass compression fitting assortment kit.
  • Includes 6 sizes: 1/8" to 1/2".
  • Ideal for automotive hydraulic braking systems.
  • Designed for specialty and general repair shops.
  • Meets ASA, ASME, and SAE specifications.
  • Joins copper, brass, or aluminum tubing.
  • Perfect for low-pressure applications.
  • Average Rating out of 5:
  • Price Range: $29.99
  • Color: Copper
  • Material: Brass
24

ANDERSON Brass Half-Union Fitting 5/8" x 3/8"

  • Brass construction for durability and corrosion resistance.
  • Half-union design for easy tube connection and disconnection.
  • 45-degree flare head for secure tube fit.
  • Male NPT connection for versatile applications.
  • Operating temperature range: -65 to +250 degrees F.
  • Resists mechanical pullout for reliability.
  • Not for potable water use in the U.S.A.
  • Average Rating out of 5:
  • Price Range: $11.35
  • Color: Copper
  • Material: Brass
25

Saffire 1/4" OD Brass Compression Fittings (2 Pack)

  • Pack of two durable brass compression fittings.
  • Compatible with 1/4” OD copper or plastic tubing.
  • Hex head design ensures strong grip during installation.
  • High-quality threads provide leak-free connections.
  • Perfect for ice maker water line applications.
  • Easy to install for both DIY and professionals.
  • Corrosion-resistant for long-lasting performance.
  • Average Rating out of 5:
  • Price Range: $8.99
  • Size: ‎0.25 NPT
  • Material: Brass
26

Beduan Stainless Steel Tube Fittings (2-Pack)

  • Made from durable 304 stainless steel.
  • 10mm outer diameter for seamless connections.
  • Pack of 2 for convenient installation.
  • Double ferrule design minimizes leakage risk.
  • Corrosion-resistant for long-lasting performance.
  • Compatible with various piping systems.
  • Easy to install for DIY projects.
  • Average Rating out of 5:
  • Price Range: $14.58
  • Size: ‎10 mm OD
  • Material: Stainless Steel
27

Anderson Metals Brass Coupling, 5/16" x 1/4"

  • Durable brass construction for long-lasting use.
  • Compatible with various tubing materials.
  • Easy to assemble and disassemble without special tools.
  • Ideal for water, gasoline, and oil applications.
  • Designed for 5/16" compression to 1/4" female pipe.
  • Lead content prohibited for potable water installations.
  • Reliable for vacuum line connections and fittings.
  • Average Rating out of 5:
  • Price Range: $9.11
  • Color: Copper
  • Material: Brass
28

TAISHER 1" OD x 3/4" NPT Connector

  • Durable 304 stainless steel construction.
  • 1" tube OD with 3/4" NPT fitting.
  • Suitable for various pipeline applications.
  • Resists corrosion and high temperatures.
  • Operating temperature: -40 to 392 degrees F.
  • Maximum pressure: 1400 PSI.
  • Ensures tight seal with hex nut design.
  • Average Rating out of 5:
  • Price Range: $16.99
  • Size: 1" OD x 1" OD(Thru-Bulk Bulkhead),1" OD x 1" OD(Valve),1" OD x 1/2" NPT,1" OD x 1" OD(316 Thru-Bulk Bulkhead),1/2" OD x 1/2" FNPT,1/2" OD x 1/2" NPT,1/2" OD x 1/2" OD,1/2" OD x 1/2" OD(Thru-Bulk Bulkhead),1/2" OD x 1/2" OD(Valve),1/2" OD x 1/2" OD x 1/2"
  • Material: Stainless Steel
29

Horiznext 3/16" Stainless Steel Compression Fitting

  • Durable stainless steel 304 construction.
  • Corrosion-resistant for long-lasting use.
  • Connects 3/16" outer diameter tubes.
  • Suitable for various tubing materials.
  • Maximum pressure rating of 1000 psi.
  • Temperature range: -100 to +660°F.
  • Ideal for fuel and water systems.
  • Average Rating out of 5:
  • Price Range: $11.90
  • Color: Copper
  • Material: Stainless Steel