Application: Mira flexible exclusive, Caution: When bending pipe is difficult, please use a bend connector etc. and ease bending work., Color: Beige, Dimention D2 (phi mm): 30, Dimension l (mm): 14, Materials (cap): PE, Material (stopper): PC, Material (lock nut): PS, Nominal Designation of Screw: G1/2
Compatible: (Pipe) DHQ-14/DHQ-16, Material: Acrylic resin, Color Tone: Clear, Purpose: Springing out and sound occurs in drain chamber of the air reflux indoors from the drain hose by the pressure difference between indoor and outdoor in well-insulated and airtight houses. "Otome-Chan" is the back flow prevention valve can exhaust drain smo, Caution: This product is not completely sealed. Air may enter depending on the operating conditions. Does not exhibit effectiveness in extreme circumstances of negative pressure inside rooms.