"Designed with the user in mind, the swing bolt and hinged lid or Davit arm assembly enables cartridge changeout to be achieved with no loose parts, heavy lifting or tools required. Manufactured with lids weighing up to 60 kg, these heavy-duty housings ensure all health and safety angles are covered by this Premier housing feature, whilst also providing reduced labour operation for engineers carrying out cartridge changeouts. Extensive stock holding, along with complete technical back up, ensures confidence in finding the correct housing for each application. All housings come complete with a universal plate which is capable of accepting both DOE and 222 fittings. Larger Premier housings, starting from the 12 round, offer additional peace-of-mind by utilising a swing bolt and Davit arm assembly. This feature, safely and effortlessly moves the housing lid to one side during changeout, eliminating the need for heavy lifting and significantly reducing downtime. Accommodating flowrates up to 1200 litres per minute, these housings include 3"" DN80 inlet and outlet connections on the 12 x 30"" version and 4"" DN100 on the 12 x 40"". Drain ports for complete emptying of the housing during changeout and pressure gauges to provide accurate differential pressure readings for filter monitoring."