Specifications:

Name: Air filter
Dimensions (length * width * height): 50 * 50 * 20 (mm)
Model: 2 points (13mm),3 points (16mm),4 points (20mm).
Material: metal + plastic
Applicable compressor type: no oil machine
Package Includes:1pc* Air Filter
Note:
Manual Measurement, please allow 1 ~ 3cm error, thanks.