GLASS M/FIBRE FILTER SHEETS WHATMAN GF/A 20.3X25.4CM BOX 100 Culture Swabs It features a 9V battery

It features a 9V battery operated colour coded conductivity meter operated by depressing the 'water test' switch allowing instant monitoring of the treated water quality

easily read dial and dual scale 10kg or 22lb x 50g or 2oz

With circular fixed block

lightweight

200g capacity

GLASS M/FIBRE FILTER SHEETS WHATMAN GF/A 20.3X25.4CM BOX 100 Culture Swabs It features a 9V batteryAll Whatman Glass Microfibre filters have a fast filtration and a high loading capacity and particle retention rate. Grade GF A Sheets: General purpose high efficiency glass micro fibre filter. Particle retention to 1. 6m. Manufactured without chemical binder from high grade borosilicate glass They are suitable for gravity or low suction filtration Filtration speeds generally very much higher than conventional cellulose papers Efficient retention of