Airtac Standard AL,BL Series Lubricator AL2000 BL2000 BL3000 BL4000, Port size: G1/4, G3/8, G1/2 On Click the picture to enlarge: Model:AL2000 BL2000 BL3000 BL4000 Airtac Standard AC,BC Series F.R.L Airtac Standard AFR,BFR Series Air Filter & Regulator Airtac Standard AF,BF Series Air Filter Airtac Standard AR,BR Series Regulator