Filter Circles, 90mm Dia, Hardened Ashless Grade 542, 100/pk (1542-090) 3-D knit structures uses air-covered

3-D knit structures uses air-covered spandex yarn with silicone coatings on the inner bands

90 Degree Angle

Insulated Needle

Double-Ended

Filter Circles, 90mm Dia, Hardened Ashless Grade 542, 100/pk (1542-090) 3-D knit structures uses air-coveredWhatman filter papers are world renowned as the standard for laboratory filtration and are associated with quality, reliability and customer service. Manufactured from high quality cotton linters, which have been treated to achieve a minimum alpha cellulose contact of 98%. Used for general filtration and exhibit particle retention levels down to 2. 5 m. Used in qualitative analytical techniques to determine and identify materials. Offers a wide choice