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Idex - Filters - Bottom-of-the-Bottle™ Filters

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.

Available models

Our All-PEEK, Bottom-of-the-Bottle Inlet Solvent Filter Assembly is the most recommended filtering unit designed. It's 100% PEEK construction delivers excellent chemical resistance and is specifically designed to be inert to most solvents. Our Filter features a bottom frit that will draw solvents to within 0.080 inches of the bottom of your solvent bottle. Our patented, Stainless Steel Bottom-of-the-Bottle Filter Assemblies have an enhanced design that draws solvent from within 1/8" of the bottom of the bottle. It includes convenient, inexpensive replaceable filter cups making it an economical choice.


List of available Bottle-of-the-Bottle™ Solvent Filter Assemblies with Porosity of 2 µm

For Tubing outer diameter Material Filter Type
1/8 inches PEEK Bottom-of-the-Bottle™
1/8 inches PEEK Bottom-of-the-Bottle™ (For GL-38 small neck bottles)
1/16 inches PEEK Bottom-of-the-Bottle™
3/16 inches PEEK Bottom-of-the-Bottle™
1/8 inches Stainless Steel Bottom-of-the-Bottle™

Our All-PEEK, Bottom-of-the-Bottle Inlet Solvent Filter Assembly is the most recommended filtering unit designed. It's 100% PEEK construction delivers excellent chemical resistance and is specifically designed to be inert to most solvents. Our Filter features a bottom frit that will draw solvents to within 0.080 inches of the bottom of your solvent bottle.

Our UHMWPE Bottom-of-the-Bottle Solvent Filter has a unique design that allows tubing to easily pass through to the very bottom of the filter cup. UHMWPE is a durable and economical material that is widely used for general and aqueous-based applications. It's unique mechanics allows the filter to draw solvents from within 0.10 inches of the bottom of the bottle.

Patented, Stainless Steel Bottom-of-the-Bottle Filter Assemblies have an enhanced design that draws solvent from within 1/8 inches of the bottom of the bottle. It includes convenient, inexpensive replaceable filter cups making it an economical choice.


List of available Bottle-of-the-Bottle™ Solvent Filter Assemblies with Porosity of 10 µm

For Tubing outer diameter Tubing inner diameter Material Max suggested Flow Rate Filter Type
1/8 inches 1/16 inches PEEK 40 mL/min Bottom-of-the-Bottle™
1/8 inches  - PEEK  - Bottom-of-the-Bottle™ (For GL-38 small neck bottles)
1/8 inches  - PEEK  - Bottom-of-the-Bottle™
3/16 inches  - PEEK  - Bottom-of-the-Bottle™
1/16 inches  - UHMWPE/Tefzel (ETFE)  - Bottom-of-the-Bottle™
1/8 inches  - UHMWPE/Tefzel (ETFE)  - Bottom-of-the-Bottle™
1/16 inches  - PEEK  - Bottom-of-the-Bottle™
1/8 inches  - Stainless Steel  - Bottom-of-the-Bottle™
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[IDEX, Upchurch Scientific, Bottom, Filters, Frits, of, the, Bottle]