Product Description Though not the original Oase Biotec fine foam but of high quality and made with the same materials compare with the genuine. Non-branded foam but suitable for Oase Biotec Screenmatic 18 & 36 Filtration System. Click "honest-f" to choose the Oase Biotec pads in our shop. Features - Approx size:230mm x 150mm x 100mm. - Custom designed and manufactured for the Oase Biotec Screenmatic 18 & 36 filtration systems. - Enhances biological filtration. - Provides efficient water flow with less clogging for long lasting filtration. - Good for freshwater and saltwater environments. Important Notes: Pay attention to the column of size,you could find different kinds of product quantities for your choice. The more your purchase the best price you get. About Shipping Great stock availability and fast dispatch are our core business. We would make every effort to process each order within 24 hours. We are international seller, each item is required to be checked by two customs.We use China Post Air Mail, epacket as our main carriers, it normally takes about 1-2 weeks to deliver to US. If you do not receive the item during this period or have any problems, please kindly contact us firstly. We will certainly solve it for you. You can rest assured that we would send each order no matter big or small as faster as we can. About Us We are honest seller, if you have any problems, please contact us before leaving your feedback. We will try our best to work out the problems with you.