Storage & Organization

The Best Lab Chromatography LC Fittings & Tubing

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Our picks are based on Amazon bestseller rankings, verified customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.

Selecting the correct lab chromatography LC fittings and tubing is crucial for ensuring accurate and reproducible analytical results. The integrity of your HPLC system depends on these components to maintain sample purity, prevent leaks, and optimize flow rates. Investing in high-quality materials can significantly reduce downtime and costly errors in your research or quality control processes.

No. 2
The Stop Shop 25 Ft. of 1/4" Copper Nickel Tubing with Fittings
  • 16 fittings included: 12 are 7/16"-24, 2 are 1/2"20, and 2 are 9/16"-18
  • Tubing will never rust!!
  • Easy to Bend and Flare Tube
No. 3
Cole-Parmer Fitting, Polypropylene, Straight, Hose Barb to Threaded Adapter, 5/32 (in) ID x 1/4 (in) NPT(M...
  • Designed for secure leak-keep-from-happeningant connections
  • Constructed of durable polypropylene
  • Wrap NPT threads 3 to 4 times with PTFE tape and wrench tighten for leak-keep-from-happeningant connections
  • Material: Polypropylene
No. 4
Diba Compact Tubing End Fitting, Type S/P, 1/16 (in) OD, 1/4 (in)-28 UNF(M), white PP: 10/pk
  • Permanently attached ferrules are ideal for repeated connect/disconnect
  • Free spinning fitting get-rid-ofs tubing from twisting
  • A recess in the fitting houses the ferrule allowing maximum thread engagement with the port
  • Select glass-filled polypropylene compact head fittings available in a range of colors for easy identification
  • Long head fitting is ideal where accessibility is an issue
No. 5
Idex Barbed Luer Adapter, Polypropylene, 0.080 (in) Bore, Female Luer Lock x 1/8 (in) Hose Barb: 1/EA
  • Excellent for connecting soft-wall tubing to a syringe or a low-pressure filter with luer connection
  • Choose from polypropylene or ETFE construction
  • Female Luer Lock x 1/8 (in) Hose Barb
  • Manufactured from polypropylene
No. 6
Idex Barbed Luer Adapter, Polypropylene, 0.099 (in) Bore, Male Luer Lock x 1/8 (in) Hose Barb: 1/EA
  • Excellent for connecting soft-wall tubing to a syringe or a low-pressure filter with luer connection
  • Choose from polypropylene or ETFE construction
  • Male Luer Lock x 1/8 (in) Hose Barb
No. 7
CS Labglass Chromatography Flow Control Adapter with 24/40 Joint for Chromatography Column, Lab Glasware
  • Chromatography flow control adapter
  • With 24/40 standard taper joint.
  • 0-4mm High vacuum valve with metering tip to adjust air pressure.
  • Chromatography flow control adapters are made of borosilicate glass, heavy duty design and high transparency, durable and sturdy.
  • Used with chromatography columns for pressure control during pressurized column chromatography separations.
No. 8
Troemner Chromatography Tubing, Natural PEEK, 1/16 (in) OD x 0.040 (in) ID x 5 ft L: 1/EA
  • An excellent replacement for stainless steel tubing
  • Flexible PEEK tubing is biocompatible and chemically inert
  • Easily cut to desired lengths
  • Smooth internal surface decreases turbulence
  • Color-coded for easier identification
No. 9
Idex MicroTight Fitting, Micro Headless, Blue PEEK, 360 µm OD Tubing, 6-32 Coned: 1/EA
  • Fingertight coned fittings can withstand up to 9000 psi!
  • Easily tighten fittings without tools
  • Variety of fittings to suit your needs
  • One-piece fittings of a nut and ferrule saves time
  • The knobs snap directly on nuts to make finger tightening easy
No. 10
Idex MicroTight Fitting, Standard Knurl, Natural PEEK, Tubing Sleeves, 6-32 Coned: 1/EA
  • Fingertight coned fittings can withstand up to 9000 psi!
  • Easily tighten fittings without tools
  • Variety of fittings to suit your needs
  • One-piece fittings of a nut and ferrule saves time

Last update on 2026-08-30 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Lab Chromatography LC Fittings & Tubing

Material Compatibility

Understanding the chemical nature of your samples and solvents is paramount. Stainless steel is a common choice for its durability and broad compatibility, but PEEK fittings are ideal for applications involving aggressive solvents or when metal ion contamination is a concern. Ensure the tubing material, whether it's stainless steel, PEEK, or Teflon, is resistant to the chemicals you will be using to prevent degradation and system failure.

Tubing Dimensions and Flexibility

The inner diameter (ID) and outer diameter (OD) of the tubing must match your system's requirements for optimal flow and pressure handling. Smaller IDs are typically used for analytical HPLC to reduce band broadening, while larger IDs might be suitable for preparative chromatography. Consider the flexibility of the tubing; stiffer materials may be more durable but harder to route, while more flexible options can simplify installation and reduce stress on connections.

Frequently Asked Questions

What is the difference between PEEK and stainless steel fittings?
PEEK fittings are made from a polymer and are often preferred for their inertness, preventing metal ion leaching into sensitive samples. Stainless steel fittings are more rigid and offer excellent durability, making them suitable for high-pressure applications where chemical inertness is less critical.
How do I choose the right tubing size?
Tubing size is determined by the inner diameter (ID) and outer diameter (OD) required by your specific HPLC system. The ID affects flow rate and band broadening, while the OD needs to fit your instrument's ports. Always consult your instrument's manual for recommended tubing specifications.
Can I reuse chromatography tubing?
While some tubing can be reused, it's generally recommended to replace it periodically, especially if you notice signs of wear, kinks, or contamination. Reusing tubing can lead to leaks or introduce impurities, affecting your analytical results.
What causes leaks in LC fittings?
Leaks typically occur due to improper installation, worn-out ferrules, or incompatible fitting materials. Ensuring the ferrule is correctly seated and tightened, and that the fitting material is compatible with both the tubing and the solvent, are key to preventing leaks.