Slim Line® filter housings are available in either reinforced polypropylene or clear Styrene- Acrylonitrile (SAN) in 5", 10" and 20" lengths. The black or blue reinforced polypropylene housing caps are available with 1/4", 3/8" or 1/2" NPT connections. Four bosses are molded into every cap for mounting purposes. Slim Line® filter housings are an excellent choice for low-flow applications and when space and chemical compatibility are primary concerns.