... ,15m,20m,25m,30m,50m Product Characteristics:1.Pre-insulated solar pipeline systems2.Quick assembly technology3.Saving time and energy 4 ... film protection6..Can be connected with all standard components .for solar thermal systems. 7..No soldering or welding required, make the ... (bar)16.0120.251220.0160.251225.0200.312 Pre-insulated Solar Flexible Stainless Steel Pipe System with UV Black Film