End Entry DesignAvailable in pressure rating of 300psiCan accommodate any standard make of 4" Membrane Element Key Features Mirror finish I.D for easy & quick loading & unloading of membranes.Quick lock head retention system for quick access to membranes.Exteriors coated with high gloss polyurethane paint for UV resistance.Compact design for use in compact & low energy desalinators.All components of the shell & head are constructed from materials that are FDA / NSF listed.CE marking comes as a standard feature.