Skip to main content
v2026.11,610 entries · CC-BY 4.0

Ask a research-administration question

Answers are drawn from CASRAI and the rest of the CASRAI corpus, with a link to every source.

Answers are AI-generated from CASRAI’s own published pages and can be wrong, so check the linked sources before relying on one; your question is logged without personal data — never sold, never used to train a third-party model — to show us what CASRAI is missing, so please do not type personal or confidential details. How we use this

CASRAI is the reference for research administration — bookmark it for the next question.

5L Vacuum Filter

SKU VACFILTER5L

USA Lab

5L Vacuum Filter

in Filtration & Purification

$949.99

In stock

Bench filtration unit built around a 5 L spherical GG-17 borosilicate flask and a stainless steel funnel, carried in an SS304 frame on casters with a vacuum barb on the flask’s offset port. The funnel takes 30 cm (11.81″) or 22 cm (8.66″) filter paper across a 9.7″ internal diameter. Overall 16″ L x 13″ W x 52″ H, 45 lb packed; the glass shut-off valve uses a 24/29 joint.

Buying through procurement?

Generate a formal quotation for 1 × this item, plus our W-9 — everything your finance department needs to raise a purchase order.

Ordering several items? Add them to your cart, then create one quote for the whole cart.

Description

Our lab vacuum filter is made of GG-17 high borosilicate glass and high quality SS304. Each filtration unit comes with a durable SS304 metal frame and easy glide casters for ease of use and cleaning. With a convenient vacuum port, you will be filtering with a large surface area in no time.

This borosilicate glass filter provides consistent and repeatable results at an affordable price. This means faster recovery without compromising quality.

Quick Start Guide

FILTER PAPER LINKS
2 um Micron Filter Paper
11 um Micron Filter Paper
20 um Micron Filter Paper

VACFILTER5L Specifications

Glass Material

GG-17

Frame Material

Stainless Steel

Pipe Material

304 Stainless Steel

Reaction Bottle Volume

Sphere 5L

Funnel Dims Filter to Top

10.2″ D x 10″ H

Funnel Internal

9.7″ D

Funnel Bottom to Top

19″ H

Filter Paper Size

30CM (11.81″) OR 22CM (8.66″)

Funnel Material

Stainless Steel

Filter Opening

80 flange opening

Exterior Size

16″ L x 13″ W x 52″ H

Packing Weight

45lbs

Glass Shutoff Valve

Joint size is 24/29

Frequently asked questions

What size filter paper does it take?+

30 cm (11.81") or 22 cm (8.66"), per both the specification table and the manufacturer's quick start guide. The funnel's internal diameter is 9.7" and it has an 80 flange opening.

What materials is it built from?+

GG-17 high-borosilicate glass for the 5 L spherical flask, stainless steel for the funnel and frame, and 304 stainless for the pipework. The frame runs on easy-glide casters.

What are the funnel and overall dimensions?+

Funnel 10.2" diameter x 10" high from filter to top, 9.7" internal diameter, 19" from funnel bottom to top. Overall unit 16" L x 13" W x 52" H, 45 lb packed.

Is a vacuum pump included?+

No. The quick start guide has you connect your own vacuum source to the barb on the offset port on top of the flask. Neither a pump nor filter paper is itemised with this unit.

How is it set up?+

Per the quick start guide: the funnel ships in the mounting bracket with the clamp assembly and glass flask packed separately. Lift and secure the funnel to leave room for the flask, fit the rubber half of the clamp to the flask, lower the funnel into the flask and secure the connection, then fit the barbed valve into the flask's offset port.

How do I seat the filter paper correctly?+

The guide directs you to lay the paper in the funnel and wet it with the clean solvent used in your solution, then open the barb valve to begin depressurising the vessel. The paper is ready to filter once it lies flat with no creases — repeated wetting may be needed to get there.

What joint does the drain valve use?+

The glass shut-off valve uses a 24/29 joint.

Referenced across the research world

University of Cambridge logoColumbia University logoCrossref logoUniversity of Edinburgh logoHarvard University logoUniversity of Oxford logoPrinceton University logoStanford School of Medicine logoUniversity College London logoORCID logoUniversity of Cambridge logoColumbia University logoCrossref logoUniversity of Edinburgh logoHarvard University logoUniversity of Oxford logoPrinceton University logoStanford School of Medicine logoUniversity College London logoORCID logo
  • University of Cambridge logo
  • Columbia University logo
  • Crossref logo
  • University of Edinburgh logo
  • Harvard University logo
  • University of Oxford logo
  • Princeton University logo
  • Stanford School of Medicine logo
  • University College London logo
  • ORCID logo

View CASRAI adoption →