MicroFilter Frits

Upchurch Scientific PEEK Y Connectors are designed to split a stream or join two streams together, just like a tee. However, the configuration of a tee can lead to turbulent flow and solvent outgassing, which increases baseline noise and reduces sensitivity. The geometry of a Y connector creates much less turbulence and thus can improve analytical results.

All of our Y Connectors use 1/4-28 Flangeless Fittings, except P-515 which uses 5/16-24 fittings. The maximum recommended pressure for all Y Connectors is 1000 psi (69 bar).

To use Y Connectors in higher pressure applications, simply replace the provided fittings with Super Flangeless™ Nuts and Ferrules.

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Item #

Frit Material



List Price



0.045 x 0.031 x 0.192 in

0.5 µm


Stainless Steel

0.038 x 0.028 x 0.192 in

2 µm


Stainless Steel

0.038 x 0.028 x 0.192 in

0.5 µm