Wilkerson® by Dixon® Miniature Particulate Filter, series: F03, 1/8 in NPT, 22 scfm, 5 micron, 250 psig, 32 to 175°F, Zinc Bowl, 4.21 in Overall Length, Zinc. Wilkerson® by Dixon® F03-01AMB Miniature Particulate Filter Without Sight Gauge, 1/8 in NPT Port, 250 psig Pressure Range, 22 scfm