... Maintenance HQS-10A Filter Housings, domestic ro systems Material: 304L/316L body, stainless steel or brass head, non-toxicStandard: NPT ... , depending on the using environmentInlet/outlet: 1/2'' or 3/4''Designs: 4 series including A, B, ... water treatment. Feature: simple installation, easy maintenance, against high temperature and pressure, long lasting HQS-10A filter housings, household water purifier ...