The flexible hoses made the installation much easier! Connecting the different components of the Pelican Whole House Water System with this installation kit is ideal. Not having a rigid connection has allowed me to easily move my tanks a couple of times to correct problems caused by the inept plumber I hired. Since these fittings attach and detach so easily without leaks, I am sure I will enjoy using them for many years ‰ЫТ especially when it is time to change out the carbon filter medium. The installation kit is well worth the cost! The fittings and hoses are well designed and user friendly. Good Job Pelican!