1Wide Application: This pressure switch valve is great for air horns, air suspension compressors, etc. Duration more than 30,000 times. 2Device Protection: This is a great switch for air compressor. It can help to save electric energy of the air compressor. Easy to install and convenient to use. 3Pressure Control Switch: Adjust the start and stop state of the air compressor, adjust the pressure in the air storage tank, and maintain the machine. 4Durable Material: The air pressure switch valve is made of stainless steel material, which is rustproof, high temperature resistant, and has long term durability and reliability. 5Precision Manufacturing: Manufactured to original manufacturer production standards, this is a direct replacement part for your broken or old one.