Whatman 1823-021 Glass Microfiber Filter 2.7µm GF/D 2.1cm Diameter

Description

Product Overview

The Whatman 1823-021 glass microfiber filter is engineered for high‑performance laboratory filtration, delivering a precise 2.7 µm particle retention rating while maintaining an exceptionally fast flow rate of 2.2 seconds per 100 mL. Constructed from premium grade GF/D glass fibers, the filter provides a robust, chemically resistant membrane that outperforms traditional cellulose filters in both durability and consistency. Its compact 2.1 cm diameter design fits a wide range of standard filter holders, allowing seamless integration into existing laboratory workflows without the need for additional adapters or modifications.

Designed as a pre‑filter, this product protects downstream membranes from clogging and extends their service life, reducing overall consumable costs. The glass microfiber structure offers a uniform pore distribution, ensuring reproducible filtration results across multiple runs. With a package of 100 units, laboratories can maintain a reliable inventory for routine assays, quality‑control testing, and research applications that demand high precision and repeatability.

Beyond its core specifications, the filter’s low weight and minimal back‑pressure contribute to smoother operation of vacuum or pressure‑driven filtration systems. The product is certified by Whatman, a trusted name in laboratory consumables, and complies with industry standards for laboratory glass fiber filters. Its discontinued‑by‑manufacturer status is false, guaranteeing ongoing availability for long‑term projects.

Usage

Ideal for pre‑filtering applications, the Whatman 1823‑021 filter excels in environments where fine particulate removal is critical before the sample reaches more delicate membranes. Typical use cases include sample preparation for high‑performance liquid chromatography (HPLC), microbiological media filtration, and removal of suspended solids in environmental testing. The rapid flow rate minimizes processing time, making it suitable for high‑throughput laboratories that handle large sample volumes daily.

Because of its chemical resistance, the filter can be employed with a broad spectrum of solvents, acids, and bases commonly encountered in analytical chemistry. Users often pair it with standard 21 mm filter holders, but the 2.1 cm diameter also accommodates custom rigs designed for specialized filtration setups. Whether operating under vacuum, positive pressure, or gravity flow, the filter maintains consistent performance, ensuring reliable data quality and reproducibility.

Why Choose Us

Choosing the Whatman 1823‑021 filter means selecting a product backed by decades of expertise in filtration technology. Whatman’s rigorous quality control processes guarantee that each filter meets exacting standards for pore size uniformity and mechanical strength. This reliability translates into reduced variability in experimental results, a critical factor for research institutions and regulated industries alike.

Our commitment to customer satisfaction extends beyond the product itself. We provide responsive technical support, detailed usage guidelines, and rapid assistance for any issues that may arise. With a proven track record of supplying high‑quality filtration media to laboratories worldwide, we ensure that you receive not only a superior filter but also a trusted partner for your analytical needs.

Key Features

• Provides precise 2.7 µm retention, ensuring removal of fine particulates while preserving sample integrity.
• Fast 2.2 seconds per 100 mL flow rate reduces processing time and increases laboratory throughput.
• Durable GF/D glass fiber construction resists chemical attack and outlasts cellulose alternatives.
• Compact 2.1 cm diameter fits standard 21 mm filter holders for easy integration into existing setups.
• Backed by Whatman’s extensive technical support and a responsive customer service team.

FAQ

What size filter should I select for my laboratory holder?

The 2.1 cm diameter of the 1823‑021 filter is compatible with most standard 21 mm filter holders. If you use a custom holder, verify that the inner diameter matches the filter size to ensure a snug fit without gaps.

Can this filter be used with organic solvents?

Yes. The GF/D glass fiber material is chemically resistant to a wide range of solvents, acids, and bases, making it suitable for filtration of organic solutions commonly used in analytical chemistry and pharmaceutical research.

How does the flow rate of this filter compare to cellulose filters?

The glass microfiber construction provides a significantly higher flow rate—approximately 2.2 seconds per 100 mL—compared to typical cellulose filters, which often require longer processing times due to higher resistance.

Is the filter suitable for pre‑filtering before high‑performance membranes?

Absolutely. Its fine retention and rapid flow make it an excellent pre‑filter to protect downstream high‑performance membranes, extending their lifespan and maintaining consistent filtration performance.

What support is available if I encounter issues with the filter?

Our dedicated technical support team is available to assist with any questions regarding filter performance, compatibility, or troubleshooting. We also provide detailed documentation and usage guidelines to help you get the most out of the product.