Specification: 100% brand new and high quality Color: White, As the picture shows Size: approx. 5.3 x 3.5cm（2.09''X1.38'') Quantity:20 Sheets Fits for ResMed AirSense 10 and AirCurve 10 to S9 Series CPAP Each filter is a combination of material engineered to block fine particles and large particulate matter, So you can breathe easy Filters are an essential component for your CPAP therapy due to their ability to remove irritating dust, pollen, And tobacco smoke particles from your CPAP airflow Package included: 20 Sheets Replacement Filters Note: Due to the hand measurement, there have size error about 1-5mm Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same