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Steritop® E-GP Funnel-less Sterile Vacuum Filtration System

greener alternative

pore size 0.22 μm, polyethersulfone membrane, capacity 150 mL × 1000 mL, 45 mm thread, pack of 12 ea

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STERITOP® E-GP Eco-friendly Filter Unit


polyethersulfone membrane
polystyrene bottle
polystyrene funnel(s)
polystyrene housing

Quality Level


sterile; irradiated

product line





pack of 12 ea

greener alternative product characteristics

Waste Prevention
Learn more about the Principles of Green Chemistry.


max. temp. at 45 °C


2.4 mL (hold-up volume)


sterile filtration: suitable


70 mm


150 mL × 1000 mL


9.5 cm

filter diam.

73 mm

filtration area

40 cm2


Express PLUS

pore size

0.22 μm pore size


inlet thread(s)
45 mm thread

greener alternative category

shipped in


General description

We are committed to bringing you Greener Alternative Products, which belong to one of the four categories of greener alternatives . This product is a Design for Sustainability (DfS) developed product. Click here to view its DfS scorecard.

For more information, please visit ACT DATABASE
Work with ease and filter with confidence with Stericup® and Steritop® Filtration Systems.

The Stericup® E and Steritop® E sterile filters are designed as a Greener Alternative for vacuum sterile filtration that significantly reduces plastic and packaging.

This Steritop® E is a 45 mm thread collar which uses a 0.22 μm pore size polyethersulfone (PES) membrane filter unit. The 45 mm thread directly connects to wider neck media bottles (such as Gibco® or glass bottles). Use a 45 mm threaded glass or plastic receiver bottle no larger than 2 liters.

Use only glass or plastic bottles designed for vacuum applications.


For Research Use Only
Stericup® and Steritop® systems are designed to reduce foaming and protein denaturation while maximizing flow and can be used for sterile vacuum filtration of aqueous solutions such as tissue culture media and biological fluids.

  • Tissue culture media +/- additives
  • Buffers
  • Biological solutions

Features and Benefits

Bold product identification on the Steritop® E filter collar plainly displays membrane characteristics, including composition and pore size, for rapid, application-appropriate product selection.

Legal Information

EXPRESS PLUS is a trademark of Merck KGaA, Darmstadt, Germany
STERITOP is a registered trademark of Merck KGaA, Darmstadt, Germany
Stericup is a registered trademark of Merck KGaA, Darmstadt, Germany

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