Top Welded Tube Connectors and Fittings

The best Welded Tube Fittings includes DERPIPE Stainless Steel Reducer Fitting (2-Pack), Beduan Stainless Steel NPT Reducer (Pack of 2), LUMAX LX-3505-10 Grease Fitting (Pack of 10) and many others as mentioned below.

1

DERPIPE Stainless Steel Reducer Fitting (2-Pack)

  • Stainless steel construction for durability and strength.
  • 3/4" NPT Female to 3/8" NPT Male fitting.
  • Corrosion resistant for long-lasting use.
  • Handles high pressure up to 2320psi.
  • Temperature range from -50℃ to +200℃.
  • Ideal for various applications: water, gas, oil.
  • Use PTFE tape for enhanced sealing (not included).
  • Average Rating out of 5:
  • Price Range: $12.99
  • Size: ‎3/4" Female x 3/8" Male,‎3/4 to 16 UNC (female), 3/8 to 16 UNC (male)
  • Material: Stainless Steel
2

Beduan Stainless Steel NPT Reducer (Pack of 2)

  • Made of durable 304 stainless steel.
  • Corrosion-resistant for long-lasting performance.
  • Temperature range: -868 to 1472°F.
  • Maximum working pressure: 2800 PSI.
  • Ideal for various gas and liquid applications.
  • Connects different pipe sizes easily.
  • Pack of 2 for convenient usage.
  • Average Rating out of 5:
  • Price Range: $11.99
  • Size: ‎3/8 FPT to 1/4 MPT
  • Material: Stainless Steel
3

LUMAX LX-3505-10 Grease Fitting (Pack of 10)

  • Pack of 10 high-quality grease fittings.
  • Gold/Silver drive type for easy installation.
  • Straight design for seamless operation.
  • 0.50-inch length fits standard specifications.
  • Corrosion-resistant passivated finish ensures durability.
  • Heavier wall thickness for added strength.
  • Ball check prevents dirt ingress effectively.
  • Average Rating out of 5:
  • Price Range: $9.37
4

Charlotte Pipe 2" x 1.25" Reducer Bushing

  • Durable PVC construction for reliable performance.
  • Designed for pressure applications up to 140°F.
  • Compatible with Schedule 40 PVC pipes.
  • Ideal for irrigation and cold water supply.
  • Made in the USA with quality craftsmanship.
  • White fittings suitable for potable water use.
  • Easy installation for various outdoor applications.
  • Average Rating out of 5:
  • Price Range: $3.08
  • Size: 1 X 1/2 Inch ( EACH qty: 1 ),1 1/2 X 1 Inch ( EACH qty: 1 ),1 1/2 X 1 1/4 Inch ( EACH qty: 1 ),1 1/2 X 1 1/4 Inch ( Box qty: 25 ),1 1/2 X 1/2 Inch ( EACH qty: 1 ),1 1/2 X 1/2 Inch ( Box qty: 25 ),1 1/2 X 1 Inch ( Box qty: 25 ),1 1/2 X 3/4 Inch ( EACH qty:
  • Material: Polyvinyl Chloride
5

MAACFLOW Stainless Steel NPT Adapter (2-Pack)

  • Durable stainless steel construction for longevity.
  • 1/2" Male to 1/8" Female NPT adapter.
  • High-strength material for enhanced performance.
  • Precision machining for superior thread accuracy.
  • 119% NPT gauge inspection for quality assurance.
  • Thicker walls for increased durability and reliability.
  • Blister packing protects fittings during shipping.
  • Average Rating out of 5:
  • Price Range: $9.97
  • Material: Stainless Steel
6

Brennan Steel JIC Flared Tube Fitting

  • Durable steel construction ensures rust resistance.
  • Connects JIC flared and NPTF male fittings.
  • Designed for high-pressure applications up to 5000 psi.
  • Operating temperature range: -63 to 400 F.
  • Easy installation for various plumbing needs.
  • Straight design for efficient fluid flow.
  • Ideal for industrial and automotive applications.
  • Average Rating out of 5:
  • Price Range: $8.99
  • Size: 1" x 1-1/2-11-1/2,1" x 1-1/4-11-1/2,1-1/2" x 1-1/2-11-1/2,1-1/2" x 1-1/4-11-1/2,1-1/2" x 2-11-1/2,1" x 1/2-14,1-1/4" x 1-1/4-11-1/2,1-1/4" x 1-11-1/2,1/2" x 1/4-18,1/2" x 1-11-1/2,1/2" x 3/8-18,1/4" x 1/2-14,1/4" x 1/4-18,1/4" x 1/8-27,3/4" x 1-1/4-11-1/2
  • Color: Silver
  • Material: Steel
7

HongBoW 5 Pcs 1/4" NPT Male Pipe Plug

  • Durable 304 stainless steel construction for longevity.
  • 1/4" NPT male thread for secure connections.
  • Maximum pressure rating of 600 psi.
  • Temperature range: -100 to +660 degrees ℉.
  • Includes five pipe plugs per package.
  • Outer hex design for easy installation.
  • Perfect for various plumbing applications.
  • Average Rating out of 5:
  • Price Range: $6.99
  • Size: ‎SS Outer Hex 1/4 NPT
  • Material: Stainless Steel
8

Beduan 1" to 1/2" NPT Reducer Bushing (5-Pack)

  • Durable 304 stainless steel construction.
  • 1" male NPT to 1/2" female NPT.
  • Ideal for air, water, gas, and fuel.
  • Creates tighter seals than straight threads.
  • Resistant to corrosion and high temperatures.
  • Maximum working pressure of 2800 PSI.
  • Pack of 5 for multiple applications.
  • Average Rating out of 5:
  • Price Range: $21.39
  • Size: 1 x 1/2 NPT (O.D x I.D: 1-1/4" x 3/4"),1-1/2 x 1 NPT (O.D x I.D: 1-7/8" x 1-1/4...,1-1/2 x 1/2 NPT (O.D x I.D: 1-7/8" x 3/4...,1-1/2 x 3/4 NPT (O.D x I.D: 1-7/8" x 1"),1 x 1/4 NPT (O.D x I.D: 1-1/4" x 1/2"),1-1/4 x 1 NPT (O.D x I.D: 1-5/8" x 1-1/4...,1-1/
  • Color: Pack of 1,Pack of 2,Pack of 3,Pack of 5
  • Material: Stainless Steel
9

Legines 3/8" NPT Brass Pipe Nipple (2-Pack)

  • Durable brass construction for long-lasting use.
  • 3/8" NPT male threads for secure connections.
  • 1-1/2" length extends pipe reach effectively.
  • 1200psi operating pressure exceeds general fittings.
  • Suitable for temperatures from -53 to 121 degrees C.
  • Not for potable water use due to lead content.
  • Meets SAE standards for quality assurance.
  • Average Rating out of 5:
  • Price Range: $7.99
  • Size: ‎3/8 Inch,‎0.375 inch
  • Material: Brass
10

TAISHER 2PCS 304 Stainless Steel Hex Bushing

  • Durable 304 stainless steel construction.
  • Reducer hex bushing: 1" Male to 1/2" Female.
  • Resistant to corrosion and high temperatures.
  • Maximum pressure rating: 2800 PSI.
  • Ideal for diverse pipe or fitting connections.
  • Forged for superior strength compared to cast.
  • Protective case included for safe storage.
  • Average Rating out of 5:
  • Price Range: $14.49
  • Size: ‎1" MNPT x 1/2" FNPT,‎1 inch
  • Material: Stainless Steel
11

Beduan Stainless Steel Reducer Coupling 3/4" x 1/2"

  • Durable 304 stainless steel construction.
  • Corrosion resistant for long-lasting use.
  • Female NPT thread for easy installation.
  • Operating temperature: -65 to 250 degrees F.
  • Versatile for various pipe applications.
  • Reduces 3/4” to 1/2” pipe size.
  • Ideal for plumbing and industrial uses.
  • Average Rating out of 5:
  • Price Range: $9.99
  • Size: ‎3/4 FPT to 1/2 FPT
  • Material: Stainless Steel
12

John Guest 3/8" Tube to 1/2" NPTF Adaptor (10 Pack)

  • Straight adapter for connecting different pipe types.
  • Push-to-connect design for easy installation.
  • Acetal copolymer material for durability.
  • High tensile and flexural strength.
  • Works under pressure up to 150 psi.
  • Meets NSF/ANSI quality standards 14, 51, 61.
  • Pack of 10 for convenience and value.
  • Average Rating out of 5:
  • Price Range: $53.99
  • Color: Gray
  • Material: Acetal
13

WOODRIVER 2-1/2" ABS Y-Fitting

  • Durable ABS plastic construction for long-lasting use.
  • Designed for 2-1/2" dust collection systems.
  • Compatible with most shop vacuums and hoses.
  • Efficient Y-fitting for optimal airflow and performance.
  • Easy to install and maintain in workshops.
  • Enhances dust collection efficiency in woodworking projects.
  • Trustworthy brand from Woodcraft, a woodworking leader.
  • Average Rating out of 5:
  • Price Range: $18.98
14

LockNLube Stainless Steel Grease Fittings Set (LNL140)

  • Premium stainless steel construction for durability.
  • Includes 40 grease fittings for versatile applications.
  • Variety of angles for hard-to-reach spots.
  • 1/4” - 28 SAE and 1/8” - 27 PTF sizes.
  • Easy to install and maintain grease fittings.
  • Ideal for automotive and industrial use.
  • Corrosion-resistant for long-lasting performance.
  • Price Range: $45.00
15

John Guest Reducing Straight Union Fittings (Pack of 10)

  • Reduces pipe sizes in inline connections.
  • Made from durable acetal copolymer material.
  • Supports nylon and polyurethane tube fittings.
  • Working pressure up to 150 psi.
  • Pack of 10 for convenience and value.
  • Meets NSF/ANSI quality assurance standards.
  • Easy installation and disconnection of pipes.
  • Average Rating out of 5:
  • Price Range: $29.00
  • Color: Gray
  • Material: Acetal
16

ini moni Stainless Steel Hex Bushing (2 pcs)

  • Durable 304 stainless steel construction for longevity.
  • NPT 3/4 male to NPT 3/8 female threads.
  • High strength with clean, burr-free threads.
  • Ideal for connecting different diameter pipes.
  • Works with water, gas, and oil lines.
  • Max pressure rating of 2900 psi.
  • Wide temperature range: -76℉ to 1472℉.
  • Average Rating out of 5:
  • Price Range: $11.98
  • Size: ‎3/4 MNPT to 3/8 FNPT
  • Material: Stainless Steel
17

HongBoW Hardware 3pcs Brass BSP to NPT Adapter

  • Durable solid brass construction for longevity.
  • Corrosion-resistant material for reliable performance.
  • High temperature tolerance up to 100 °C.
  • Deep threads ensure secure, leak-proof connections.
  • Ideal for BSP to NPT conversions.
  • Package includes three quality adapters.
  • Not suitable for drinking water applications.
  • Average Rating out of 5:
  • Price Range: $14.99
  • Size: ‎3/8" BSPT X 3/8" NPT,‎3/8
  • Material: Brass
18

Watts ART3412 Poly-Pipe Reducing Tee Fitting

  • High pressure poly-pipe reducing tee fitting.
  • Constructed from durable fiberglass reinforced nylon.
  • Leak-free connection with blue captive nut seals.
  • Compatible with various pipe types and sizes.
  • Easy hand connection, no special tools required.
  • UV stabilized for versatile outdoor applications.
  • Reusable fitting, designed for long-lasting performance.
  • Average Rating out of 5:
  • Price Range: $7.98
  • Color: blue, black
  • Material: Plastic
19

John Guest Reducer Fitting 1/4" x 5/16" (10 Pack)

  • Durable acetal copolymer construction for longevity.
  • Reducer fitting connects 1/4" and 5/16" tubes.
  • Ideal for air, plastic, and soft metal tubes.
  • Meets NSF standards for safety and quality.
  • Low moisture absorption for reliable performance.
  • High tensile strength ensures strong connections.
  • Convenient pack of 10 for multiple uses.
  • Average Rating out of 5:
  • Price Range: $20.00
  • Color: Gray
  • Material: Acetal
20

Geife 1.5" Tri Clamp Extension Tube

  • Durable 304 stainless steel construction for longevity.
  • Pressure relief valve for 100 PSI applications.
  • Compatible with 1" and 1.5" tri-clamp fittings.
  • 6cm height provides ample space for clamps.
  • Secure connections for industrial and brewing uses.
  • Easy installation with standard tri-clamp design.
  • Corrosion-resistant for reliable, long-term performance.
  • Price Range: $38.99
  • Color: Stainless Steel
  • Material: Ss304 Stainless Steel
21

Rainbow Dream PVC Male Adapter (10 Pack)

  • High impact strength for pressure applications.
  • Convenient 10-pack for easy project completion.
  • Non-toxic, lightweight, and easy to install.
  • Excellent sound deadening and corrosion resistance.
  • Suitable for cold-water distribution systems.
  • Meets ASTM and NSF compliance standards.
  • Installs with primer and solvent cement easily.
  • Average Rating out of 5:
  • Price Range: $14.99
  • Size: ‎1 Inch,‎1 inch
  • Material: Polyvinyl Chloride
22

Brennan Steel JIC Flared Tube Fitting

  • Durable steel construction for rust resistance.
  • JIC flared male connector for reliable connections.
  • O-ring boss provides a secure seal.
  • Compatible with various pipe types and sizes.
  • Operating temperature: -63 to 400 degrees F.
  • Meets SAE J514 quality standards.
  • Straight fitting design for easy installation.
  • Average Rating out of 5:
  • Price Range: $4.12
  • Size: 1 Count (Pack of 1),1" x 1-1/16-12,1-1/2" x 1-5/8-12,1-1/2" x 1-7/8-12,1-1/4" x 1-5/16-12,1-1/4" x 1-7/8-12,1" x 1-5/8-12,1" x 1-5/16-12,1" x 1-7/8-12,1/2" x 1-1/16-12,1/2" x 1-5/16-12,1/2" x 9/16-18,1/4" x 1-1/16-12,1/4" x 3/4-16,1/4" x 3/8-24,1/4" x 5/1
  • Material: Steel
23

Beduan 3/8" to 1/4" NPT Reducer (2-Pack)

  • Durable stainless steel construction for long-lasting use.
  • 3/8" to 1/4" male NPT reducer fitting.
  • Corrosion-resistant for various environmental conditions.
  • Maximum working pressure of 2800 PSI.
  • Temperature range: -868°F to 1472°F.
  • Ideal for water, air, gas, and fuel applications.
  • Perfect for home plumbing and pipe installations.
  • Average Rating out of 5:
  • Price Range: $9.99
  • Size: ‎3/8" to 1/4",‎3/8
  • Material: Stainless Steel
24

TAISHER 2PCS 304 Stainless Steel Reducer Adapter

  • 2PCS reducer adapter for versatile connections.
  • Constructed from durable 304 stainless steel.
  • 3/4" NPT male and 3/4" G female threads.
  • Ideal for various industries and applications.
  • Resistant to corrosion and high temperatures.
  • Maximum pressure rating of 2800 PSI.
  • Forged design offers superior strength and quality.
  • Average Rating out of 5:
  • Price Range: $15.99
  • Size: 1" G (BSP) Female x 1" MNPT,1" FNPT x 1/2" MNPT,1/2" FNPT x 1/2" MNPT,1/2" G (BSP) Female x 1/2" MNPT,1/2" FNPT x 1/4" MNPT,1/2" FNPT x 1/8" MNPT,1/2" FNPT x 3/8" MNPT,1" FNPT x 3/4" MNPT,1/4" FNPT x 1/4" MNPT,1/4" G (BSP) Female x 1/4" MNPT,1/4" FNPT x 1
  • Material: Stainless Steel
25

LOZOME 1-1/2" x 1/2" Stainless Steel Reducer

  • High-quality stainless steel 304 construction.
  • 1-1/2" x 1/2" female reducer design.
  • Compatible with NPT male threaded pipes.
  • Corrosion-resistant for long-lasting performance.
  • Ideal for connecting different pipe sizes.
  • Ensures tight seals with NPT threads.
  • Easy installation for various plumbing applications.
  • Average Rating out of 5:
  • Price Range: 0
  • Size: ‎1-1/2" x 1/2",‎0.5 inch
  • Material: Stainless Steel
26

Dixon [HB3020] 3" x 2" Reducer Bushing

  • 3" x 2" reducer bushing for pipe connections.
  • Features male and female NPT threads.
  • Durable malleable iron construction.
  • High tensile strength for reliable performance.
  • Maximum operating pressure of 150 psi.
  • Meets ANSI Class 150 standards.
  • Ideal for diverse plumbing applications.
  • Average Rating out of 5:
  • Price Range: $24.29
  • Color: Gray
  • Material: Iron