Insect-Proof Valve for Room Air Conditioner

[Features]
・ This works both as a sound damping and insect-proof valve that eliminates the bubbling noise of room air conditioners caused by the inflow of outside air from drain hoses,etc., due to the pressure difference between indoor and outdoor.
・ Clear body, overwhelmingly compact
・ Overall length: 63 mm; outer diameter (maximum part): ø28 mm
・ Highly weather-resistant
・ It is easy to install and can be also installed on drain pipes.
・ It can be installed vertically, diagonally, or horizontally on the ground.