Filter Muffler Box Dental Silent Muffler Easy Operation With High Efficiency For Air Compressor For Engineer Feature:1. The small box and large container are assembled with sockets, which are easy to handle and operate.2. Mainly used for installation in oil-free air inlet to effectively reduce the noise during operation.3. The threaded mounting hole is accurate, the size is standard, and it has good stability.4. The two boxes are small and compact, making it easy to install and remove.5. The muffler is mainly used in dental air filters and oil-free air compressor, and has strong practicability. Specification:Item Type: Filter Muffler Large Container Size: Approx. 161x56x65mm / 6.3x2.2 x 2.6in (Height Not Include Hole Height)Small Box Size: Approx. 48x48x55mm / 1.9x1.9x2.2in (Height Does Not Include Hole Height)Threaded Hole Center Distance: Approx. 76mm/3in Purpose: Dental Air Filter Silencer, Oil-Free Air; Usage: fold the small box with the large container through the slot. . Package List:1 x Large Container1 x Small Box