About this 3D model
Connection boxes for Modular Pipes System (found here) 3 models included: 2 sides with Double Pipes | 2 sides Single pipe | Single Pipe top 2 sides with Double Pipes | 2 sides Single pipe | Single Pipe top - Low Profile 1 side with Double Pipes | 3 sides Single pipe | Single Pipe top - Low Profile Printable with no supports. Some photos show pipes and other connections not included.