Ingersoll Rand India Ltd. Manufactures Piggyback Filter and Regulator. Ingersoll Rand India Ltd. Is an ISO Class O certified company that also offers products like Machine Tools, Material Handling Equipments, Pumps, Fans & Blowers Accessories, Air Compressors, Air Motors, Compressors etc.Piggyback Filter and Regulator is a integrated filter and regulator with Bright, flush mount gauge with settable fan feature. The Piggyback Filter and Regulator is available in 1/8" & 1/4" sizes. The Piggyback Filter and Regulator provide Industry leading flow rates and Low leak rates.