Glass Microfiber Accessories

3-Piece filter funnel
The increased use of high-efficiency glass microfiber filters in modern laboratories has created a demand for simple and effective filter-holding systems. Whatman 3-Piece filter funnels have been designed to complement the range of Whatman fine particle retention, rapid flow rate glass microfiber filters.

Functional design
Three-piece construction. The funnel is quickly dismantled ready for the insertion of a new filter. The glass sealing flanges of the funnel and reservoir are ground flat to ensure a good filter seal.

Positive filter clamping
All retained solids are deposited within the filter circle. Edge clamping prevents peripheral loss and possible passage of solution around, rather than through, the filter circle.

Simple to clean 
The parts can be quickly and efficiently cleaned because of the simplicity of the design.

A choice of three plates

For quick and easy filtration, Whatman 3-Piece filter funnels are available with a choice of three plates. They also come in several sizes to match your needs:

  • Acrylic Plate: Supplied as standard. Suitable for filtration of most aqueous solutions. Maximum working temperature 65°C.
  • Polypropylene Plate: Optional extra. Recommended for most acids (except concentrated nitric acid and fuming sulfuric acid) at room temperatures. Suitable also for most alcohols, glycols, ethers, and ketones. Maximum working temperature 100°C.
  • PTFE Plate: Optional extra. For virtually all common acids, alkalis and solvents at temperatures up to 100°C. Maximum working temperature 200°C.

Catalog Number                                   Description

3-Piece Filter Funnels

1950-002     Filter Funnel, 3-piece, 25 mm, 16 ml reservoir 1/pk
1950-004     Filter Funnel, 3-piece, 47 mm, 36 ml reservoir 1/pk
1950-007     Filter Funnel, 3-piece, 70 mm, 115 ml reservoir 1/pk
1950-017     Filter Funnel, 3-piece, 70 mm, 210 ml reservoir 1/pk
1950-027     Filter Funnel, 3 piece, 70 mm, 400 ml reservoir 1/pk
1950-009     Filter Funnel, 3-piece, 90 mm, 200 ml reservoir 1/pk
1950-012     Filter Funnel, 3-piece, 125 mm, 530 ml reservoir 1/pk

Filter Funnel  Plates - Polypropylene

1950-109     Filter Funnel Plate, Polypropylene, 90 mm 1/pk

Filter Funnel  Plates - PTFE

1950-114     Filter Funnel Plate, PTFE, 47 mm 1/pk
1950-117     Filter Funnel Plate, PTFE, 70 mm 1/pk
1950-119     Filter Funnel Plate, PTFE, 90 mm 1/pk

Replacement Reservoirs

1950-207     Filter Funnel Reservoir, 115 ml, 70 mm 1/pk
1950-209     Filter Funnel Reservoir, 200 ml, 90 mm 1/pk
1950-217     Filter Funnel Reservoir, 210 ml 70 mm 1/pk

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