Interstate Pneumatics 1/2" Large "T" Handle Poly Bowl Filter Regulator Lubricator Combo. Clean air is a key ingredient that enables effective and efficient use of tools, equipment, and machinery in almost every industry. For preventing your air tools from rusty air & foggy atmosphere & keep those in working condition for a long time we suggest use of air preparation devices such as filters, regulators, and lubricators. As a modular component, this filter-regulator-lubricator can quickly be attached with convenient minimum installation time into your compressed air system. Provides clean, dry, regulated compressed air over a wide range of airflows with accurate control and fast response. Efficiently traps moisture while passing through clean, dry compressed air.