◆ High elastic EPDM rubber tube structure. ◆ Good puncture resistant, abrasion resistance, acid and alkali resistance. ◆ 20 years long lifetime during operation. ◆ Easy to install, only two steps (Cover, pull). ◆ Fast installation, only 15-30 seconds needed to seal one connection. ◆ No limitation of spare space, especially design for narrow space. ◆ Easy to uninstall, only need knife to cut tube open. ◆ No skill required by engineers, uniform quality after installation, stable and good sealing and ◆ Weatherproofing performance. ◆ Much time and labor cost saving. ◆ Good operating capability under hash environmental condition, salt-mist situation, heavy windy weather, and anti-UV, anti-ozone.