Inlet filter selector

Match the tubing interface and body

Keep tubing ID and OD separate. Then compare body shape, dimensions, pore size and reservoir clearance.

1/8 in D12 inlet filters10-piece configurations1/8 in D12 inlet filtersID 1/8 in D12; listed at 2, 5, 10 and 20 umView product Stepped inlet filtersTwo connection formsStepped inlet filtersID 2.2 and 1/8 in step configurationsView product 316L inlet filter rangeCylindrical and flat316L inlet filter range25 models with 0.5-50 um listed optionsView product
InterfaceRecord whether the tube value is ID or OD.
BodyCheck cylindrical, flat or stepped geometry.
PoreUse the size listed for the matched model.
SpaceConfirm the bottle opening and fluid depth.
Material and application checksReview the material, pressure, temperature and documentation details needed for a component inquiry.Review the checklist
Stainless steel HPLC solvent inlet filter, 1/8 inch D12, ten pieces, on white backgroundStainless steel HPLC solvent inlet filter custom pack, ten pieces, on white background
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HPLC Solvent Inlet Filter, Stainless Steel, 1/8 in

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Price range: $500.00 through $625.00
Stainless steel HPLC solvent inlet filter, ID 2.2 step, on white backgroundStainless steel HPLC solvent inlet filter, 1/8 inch step, on white background
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Stainless Steel HPLC Solvent Inlet Filters, Multiple Configurations

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Price range: $83.33 through $100.00
Stainless-Steel HPLC Solvent Inlet Filters, Multiple Models, gallery view 1 on white backgroundStainless-Steel HPLC Solvent Inlet Filters, Multiple Models, gallery view 2 on white background
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Stainless-Steel HPLC Solvent Inlet Filters, Multiple Models

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Price range: $32.50 through $149.17
Selection guide

HPLC solvent inlet filters sit at the reservoir end of the inlet line. This category contains three stainless-steel product families with stepped, cylindrical and flat configurations. Match the tubing interface first. Then compare the body dimensions, pore size, reservoir clearance and pack quantity.

Distinguish tubing ID from tubing OD

The connection description must match the tube. Several listed models specify the tubing inside diameter (ID). Other models specify the outside diameter (OD). For example, a filter for 1/8 in ID tubing is not the same interface as a filter for 1/8 in OD tubing.
Write the dimension and its type together. Use "1/8 in ID" or "1/8 in OD" in the order reference. Do not shorten either value to "1/8 in tubing." The 25-model family also includes connections for 1/16 in ID, 1/4 in ID, 4.35 mm ID and 4.5 mm ID tubing.
Two smaller product families use stepped connection descriptions. One lists ID 2.2 and 1/8 in step configurations. Another lists an ID 1/8 in D12 configuration and a custom option. Retain the full model wording when you request these parts.

Check the body shape and reservoir clearance

The 25-model family contains cylindrical and flat filters. Its listed cylindrical bodies include 7.3 x 20.6 mm, 8 x 8 mm, 12.5 x 25 mm and 25 x 40 mm forms. The listed flat body has a 20 mm diameter. Confirm that the selected body can sit in the reservoir without blocking the line or interfering with the bottle opening.
A body that fits the tube can still be unsuitable for the available space. Record the reservoir opening, fluid depth and inlet-line route. Keep the installed filter accessible for inspection and replacement. Do not force a tube bend to make a larger body fit.

Select a listed pore size for the matched model

Across the three families, the listed pore sizes run from 0.5 to 50 um. The two stepped families list 2, 5, 10 and 20 um options. The 25-model family lists 0.5, 2, 10, 20 and 50 um across different body and connection combinations.
Not every pore size is available with every interface. Match the tubing connection and body first, then check the pore options under that model. Use the method requirement or installed part reference to select the rating. A change in pore size can change loading and inlet restriction.

Verify material and order quantity

The verified product descriptions identify stainless steel, and the 25-model family specifies 316L in its short description. Confirm the exact model material against the solvent, buffer, pH, cleaning procedure and other wetted parts. Do not extend a material statement from one family to another without product data.
Pack details vary. One family lists ten-piece configurations. Other product pages group pore choices inside a model label. Record the exact product SKU, selected model, tubing ID or OD, body dimensions, pore size and quantity.
Browse HPLC inline filters and replacement frits for filters installed within the instrument flow path. Contact Flownectra with the current part number or a measured drawing when the inlet connection is uncertain.