Self-Travelling Air Coupler is a simple and quick to connect fitting. This can be effortlessly disconnected and release. Most commonly, this works as a permanent seal and is less harder to remove. Simple to replace and insert. Self-Travelling Air Coupler finds compatibility with all types of coupling body. This ensures a strong airtight seal. Its utilization is quite simple. In addition, this is available to clients at affordable price. The coupler can save a large space and eradicate the necessity for a shut-off valve so as to do away with these epage or spillage.