U clip and P clip prevent clogging of air hose and co2 hose, so that oxygen and co2 are supplied smoothly and add naturalness to the tank.

M size glass can be used up to 8mm thick
L size glass can be used up to 12mm thick

U Clip Components: 2 U Clips
P Clip Components: 2 P Clips, 1 rubber band for pipe molding