PEEK frits

Replacement PEEK Filter Discs

Chrom Tech supplies IDEX replacement PEEK filter discs engineered for consistent particulate retention and long service life in HPLC and UHPLC systems. These precision-manufactured polymer frits deliver exceptionally uniform porosity, ensuring predictable flow behavior and consistent frit-to-frit swept volumes.

PEEK filter discs are biocompatible and chemically inert to most solvents, making them well suited for bioanalytical workflows and sensitive LC applications. Their robust mechanical properties support both low- and high-pressure environments while maintaining stable flow paths and reliable filtration performance.

Use IDEX PEEK frit replacements to restore filtration efficiency, protect downstream columns, and maintain consistent chromatographic results across routine analytical and bioanalytical separations.

PART NO POROSITY DISC DIAMETER DISC THICKNESS RING OD RING MATERIAL FRIT VOLUME
PEEK FRITS
A-7002 µm0.062" (0.16 cm)0.062" (0.16 cm)0.250" (0.64 cm)PCTFE0.7 µL
A-7010.5 µm0.062" (0.16 cm)0.062" (0.16 cm)0.250" (0.64 cm)PCTFE0.6 µL
A-7022 µm0.091" (0.23 cm)0.062" (0.16 cm)0.250" (0.64 cm)PCTFE1.7 µL
A-7030.5 µm0.092" (0.23 cm)0.062" (0.16 cm)0.250" (0.64 cm)PCTFE1.4 µL
A-7042 µm0.125" (0.32 cm)0.062" (0.16 cm)0.250" (0.64 cm)PCTFE3.0 µL
A-7062 µm0.188" (0.48 cm)0.062" (0.16 cm)0.250" (0.64 cm)PCTFE7.1 µL
A-7070.5 µm0.195" (0.50 cm)0.062" (0.16 cm)0.250" (0.64 cm)PCTFE6.1 µL
A-7082 µm0.062" (0.16 cm)0.062" (0.16 cm)0.200" (0.51 cm)PCTFE0.7 µL
A-7102 µm0.125" (0.32 cm)0.062" (0.16 cm)0.200" (0.51 cm)PCTFE3.0 µL
SEMI-PREP PEEK FRITS
OC-8022 µm0.460" (1.17 cm)0.070" (0.18 cm)0.560" (1.42 cm)PCTFE46.4 µL
A-72010 µm0.125" (0.32 cm)0.070" (0.18 cm)0.250" (0.64 cm)PCTFE4.2 µL
A-72210 µm0.197" (0.50 cm)0.070" (0.18 cm)0.250" (0.64 cm)PCTFE9.9 µL
OC-80310 µm0.460" (1.17 cm)0.072" (0.18 cm)0.560" (1.42 cm)PCTFE57.2 µL
OC-8055 µm0.460" (1.17 cm)0.058" (0.15 cm)0.560" (1.42 cm)PCTFE41.1 µL
OC-8155 µm0.293" (0.74 cm)0.062" (0.16 cm)0.375" (0.95 cm)PCTFE17.8 µL
Key Definitions â–¶
PEEK Filter Disc
A polymer-based frit designed to capture particulates in HPLC and UHPLC systems while maintaining stable flow paths and protecting downstream components.
Uniform Porosity
Consistent pore structure throughout the frit that delivers predictable flow behavior, even particle retention, and longer filtration life.
Swept Volume
The internal volume introduced by a frit or filter assembly. Consistent swept volume helps preserve chromatographic peak shape and system reproducibility.
Biocompatible Filtration
Filtration using inert materials such as PEEK that minimize sample interaction, making these filter discs ideal for bioanalytical and protein-sensitive workflows.
Replacement Frit
A serviceable filter disc used to restore filtration performance in existing fittings or filter housings, helping reduce backpressure and protect analytical columns.
Frequently Asked Questions â–¶
When should I replace a PEEK filter disc?
Replace PEEK filter discs when system backpressure increases, flow becomes restricted, or chromatographic performance declines. Regular replacement helps protect columns and maintain stable LC operation.
Are PEEK filter discs compatible with high-pressure HPLC systems?
Yes. PEEK filter discs are engineered to withstand both low- and high-pressure LC environments while maintaining consistent filtration and swept volume performance.
Why choose PEEK over stainless steel frits?
PEEK frits provide chemical inertness and biocompatibility, making them ideal for bioanalytical or metal-sensitive applications. Stainless steel frits are typically preferred for maximum pressure resistance.
Do PEEK filter discs affect swept volume?
Uniform porosity helps ensure consistent swept volume from frit to frit, supporting reproducible chromatography and minimizing peak distortion.
Are PEEK filter discs compatible with most solvents?
Yes. PEEK is chemically inert to most common HPLC solvents, making these filter discs suitable for a wide range of analytical and bioanalytical applications.