Stainless steel frits

The analytical-scale 316 stainless steel frits from Biotech Fluidics are available in 0.5 µm or 2 µm porosity, which corresponds to the most common filtration ratings in HPLC. Each frit includes a polymer sealing ring made from PCTFE or PEEK. Many of the frits have the common 0.250” (6.35 mm) and 0.254” (6.45 mm) ODs, which allow them to be used in many of the guard column, precolumn and inline filter housings we also supply.

The frits for semi-preparative flow rates are available with 2, 5, 10, and 20 µm filtration porosities and a range of diameters to match your intended flow rate and filtration requirements. These frits come complete with a polymer sealing ring made from PCTFE, ETFE, or PTFE.

Note that faster flow rates may require larger filtration area and/or larger porosity. To minimize contributions from extra flow path volume, choose frits with a smaller diameter face and/or smaller porosity.

Benefits:

Available in porosity from 0.5 µm to 20 µm
Includes a polymer sealing ring
Fits many housings for guard columns and inline filters

Polymer sealing ring materials:

PCTFE = polychlorotrifluoroethylene
PEEK = polyetheretherketone
ETFE = ethylene tetrafluoroethylene
PTFE = polytetrafluoroethylene

Analytical stainless-steel frits

0.5 µm Stainless-steel frits

2 µm Stainless-steel frits

Prod. No.*	Porosity	Disc Diameter	Disc Thickness	Ring OD	Ring Material	Frit Volume
A-100	2 µm	0.094” (0.24 cm)	0.062” (0.16 cm)	0.250” (0.64 cm)	PEEK	1.7 µL
A-101	2 µm	0.062” (0.16 cm)	0.062” (0.16 cm)	0.250” (0.64 cm)	PEEK	0.7 µL
A-102	0.5 µm	0.062” (0.16 cm)	0.062” (0.16 cm)	0.250” (0.64 cm)	PEEK	0.6 µL
A-103	0.5 µm	0.094” (0.24 cm)	0.062” (0.16 cm)	0.250” (0.64 cm)	PEEK	1.4 µL
A-420	2 µm	(0.32 cm) 0.062”	0.062” (0.16 cm)	0.200” (0.51 cm)	PCTFE	3.0 µL
C-128-31	0.5 µm	0.038” (0.10 cm)	0.028” (0.07 cm)	0.125” (0.32 cm)	PEEK	0.1 µL
C-140-30	0.5 µm	0.188” (0.48 cm)	0.062” (0.16 cm)	0.254” (0.65 cm)	PCTFE	6.5 µL
C-401	2 µm	0.125” (0.32 cm)	0.062” (0.16 cm)	0.250” (0.64 cm)	PEEK	3.0 µL
C-402	2 µm	0.188” (0.48 cm)	0.062” (0.16 cm)	0.254” (0.65 cm)	PEEK	7.8 µL
C-407	2 µm	0.038” (0.10 cm)	0.028” (0.07 cm)	0.062” (0.16 cm)	PCTFE	0.1 µL
C-408	2 µm	0.038” (0.10 cm)	0.028” (0.07 cm)	0.125” (0.32 cm)	PEEK	0.1 µL
C-409	0.5 µm	0.038” (0.10 cm)	0.028” (0.07 cm)	0.062” (0.16 cm)	PCTFE	0.1 µL
C-420	2 µm	0.038” (0.10 cm)	0.028” (0.07 cm)	0.192” (0.49 cm)	PCTFE	0.1 µL
C-425	0.5 µm	0.038” (0.10 cm)	0.028” (0.07 cm)	0.192” (0.49 cm)	PCTFE	0.1 µL

Semi-preparative stainless-steel frits

2 µm Semi-prep stainless-steel frits

10 µm Semi-prep stainless-steel frits

20 µm Semi-prep stainless-steel frits

Prod. No.*	Porosity	Disc Diameter	Disc Thickness	Ring OD	Ring Material	Frit Volume
A-105	10 µm	0.062” (0.16 cm)	0.062” (0.16 cm)	0.250” (0.64 cm)	PCTFE	0.9 µL
A-106	10 µm	0.094” (0.24 cm)	0.062” (0.16 cm)	0.250” (0.64 cm)	PCTFE	2.0 µL
A-107	10 µm	0.189” (0.48 cm)	0.062” (0.16 cm)	0.254” (0.65 cm)	PCTFE	9.1 µL
A-120	20 µm	0.125” (0.32 cm)	0.062” (0.16 cm)	0.250” (0.64 cm)	PCTFE	3.7 µL
A-122	20 µm	0.188” (0.48 cm)	0.062” (0.16 cm)	0.254” (0.65 cm)	PCTFE	9.7 µL
A-224	20 µm	0.188” (0.48 cm)	0.062” (0.16 cm)	0.254” (0.65 cm)	PTFE	9.7 µL
A-331	10 µm	0.750” (1.91 cm)	0.062” (0.16 cm)	0.880” (2.24 cm)	ETFE	142 µL
A-332	2 µm	0.750” (1.91 cm)	0.062” (0.16 cm)	0.880” (2.24 cm)	ETFE	122 µL
A-337	20 µm	0.750” (1.91 cm)	0.062” (0.16 cm)	0.880” (2.24 cm)	ETFE	152 µL