Pass Box Interlocking System interlocks the two doors of pass box in such a way that two doors cannot be opened at the same time, due to which pressure losses and bacterial contamination does not take place throughout the material transferring process. The Interlocking System is made from quality grade raw material that ensures longer functional life. The Interlocking System is designed in such a way that facilitates ease of installation. Pass Box Interlocking System comes in different specifications to cater to specific requirement.