As one of the first manufacturers, KNOCKS, with the Futura series, introduced in 2006 a complete series of Grivory GV 6H to the market as an absolute technical highlight. The innovative material concept has metal-like properties and, with a fibre glass percentage of 60 per cent, is much sturdier, lighter, stiffer and more economical than metal. The devices in the Futura series permit the modular construction of a maintenance unit for processing compressed air, thereby providing absolute flexibility with guaranteed functional safety. Sets of compressed air filters, pressure regulators and mist lubricators are common device combinations used in a maintenance unit for compressed air. All pressure regulators and compressed air filters in the KNOCKS Futura series are available in the sizes 0, 1, 2 and 4.