The housings are compatible with 1.5, 2.5 and 5 inch Mini Filters to meet the needs of your small scale application. The housing can support the 116 o-ring size where the o-rings are on the filter (code A) or the housing (code N). The design of the housing provides for a positive seal with the filters thereby preventing fluid bypass. The housing is sealed by the use of an easy to use tri-clamp that requires no special tools to open or close. These sanitary mini stainless steel housings are ideal for laboratory, small production or pilot scale operations. The ZenPure mini filters utilized with these housing can be scaled up to as large as 40″ filter.