Sc1200 Filter Replacement Kit for So Clean Machine Clean. Filter kit replacement for CPAP filters, compatible with CPAP machine. Quick install and easy to use. Recommended for replacement every 6 months: replace the filter and valve every 6 months for optimal performance. Universal compatibility: filter replacement kit features a precise design, perfectly compatible with SC1200 and SC2 machines, delivering the same performance as the original. Convenient to install: CPAP filter kit replaces old or damaged filters, easy to install without additional tools and designed to prevent leakage. Portable design: CPAP machine filters are compact, lightweight, and easy to carry. Material: Plastic. Color: Grey. Package contents: 8 x Filter Elements, 8 x Check Valve Assembly. Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement allowance is +/- 1-3 cm.