NanoTight Fittings are specifically designed to connect 70 μm–1 mm OD capillary tubing to any standard 10-32 coned port normally intended for 1/16 inches outer diameter tubing using the NanoTight Tubing Sleeves. The fittings can also be used to connect any 1/16 inches outer diameter tubing.

Our PEEK Fittings with Knobs are biocompatible and offers excellent chemical resistance. We designed these fitting to be simple, economic, and easy-to-use. It comes in one and two piece options. The multi-colored knob is designed to allow for easy identification.

Our unique Two-Piece Fingertight Fittings feature a separate ferrule. With a two-piece design, you can replace just the ferrule instead of the entire unit, making these Fingertights more economical than the one-piece version. Use a standard knurled head fitting for traditional fingertight applications, or use a fitting with wings built into the head for extra tightening leverage. 

Our uniquely designed Bottom-of-the-Bottle Filters effectively protect your system by filtering out particulate matter that my otherwise damage expensive hardware. Our durable stainless steel specifically designed to allow solvents to be drawn from within 1/8 inches of the bottom of your bottle. Our UHMWPE version allows tubing to pass through to the bottom of the filter cup, enabling the filter to draw solvent from within 0.10 inches (2.5 mm) of the bottom of your solvent bottle. This widely known and durable polymer is an economical choice. Our PEEK version is biocompatible and includes two built-in PEEK frits. Our PEEK frit (2 μm or 10 μm) will draw solvents from within 0.080 inches (2.0 mm) of the bottom of the solvent bottle. The 2μm frit on the side may be used for a 1/8 inches outer diameter helium sparging line.

We offer general use, preparative and specialized versions of Inlet Solvent Filters for many applications. Our filters come in stainless steel and polymer versions for excellent chemical compatibility. We provide a wide selection of porosities and materials to meet your system requirements.

Mini MicroFilters deliver effective filtration with internal volumes low enough to ensure reliable chromatographic results — even at nanoliter per minute flow rates! Internal volumes of these encapsulated filters are as low as 85 nL with the micro-screen and 10 nL to 22 nL with the frit disc option. A MiniMicro Filter provides cost effective insurance against column damage.

Biocompatible Semi-Prep Filters consist of a stainless steel body, two PEEK end fittings, and a separate PEEK frit. These filters are ideal for many higher flow analytical, semi-prep and preparative applications. Best of all, if the filter becomes clogged, simply unscrew the assembly, remove the frit and replace it. The frits are interchangeable.

Metric Flangeless Fittings offer the same benefits as our Flangeless Fittings with the additional feature of being used for metric tubing and ports. They are specifically designed to connect 1.8, 2.0, 2.5, 3.0, or 4.0 mm outer diameter tubing to flat-bottom ports when paired with the appropriate M6, 1/4-28, or 5/16-24 Flangeless Nuts. We also offer M6-threaded nuts to connect 1/16 inches or 1/8 inches outer diameter tubing, plus a tubing sleeve to facilitate 1.0 mm outer diameter tubing connections.