100PCS 2 SPEEDS SYNTHETIC FILTER DISCS: You will receive 100pcs quantitative filter paper in 2 styles filtering speed: slow flow(filtration rate 70 - 140 sec, pore 10 to 15 µm); fast( rate<35 sec, pore 20~25µm), each speeds contains 50pcs filter paper, quantity enough to meet your different need
HIGH QUALITY: Quantitative ashless filter papers are made from high quality fibres paper and have good role to pressure and heat. Each cellulose filter paper about 90mm in diameter, 0.15mm thick, and the ash content is not more than 0.15%
BREATHABLE: Filter papers ensure the circulation of air inside and fresh air outside and are indispensable for mushroom cultivation.
HOW TO USE: Qualitative filter paper can be installed on the hole of the lid of a wide mouth can; please note that the smooth surface of the synthetic filter disc faces the liquid, and the surface needs to be cleaned and dried before use.
WIDE APPLICATION: Quantitative filter paper are widely applied in buchner funnels and wide mouth can lid, can be cut into wide mouth sizes, suitable for mushroom cultivation; DIY them into normal mouth size or other smaller sizes.