The OTR 0.37" Trailer Air Supply Knob is the perfect solution for your trailer air supply needs. This knob is made from premium quality materials for superior durability, built to last. It is manufactured to the highest standards in an ISO/TS16949 certified facility, ensuring that you get the best quality product. The red color adds a stylish touch to your trailer and makes it stand out from the crowd. This knob is easy to install, designed to provide a secure and reliable connection. With its superior quality and long-lasting performance, this air supply knob is the perfect choice for your trailer air supply needs.

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