These are advance version of Recessed Chamber Closed configuration plates, where Filter cloth is caulked in the caulking groove around the recess of plate. Major benefits of this design are Zero leakage because ‘O’ Ring seats around the sealing edge and filtrate hole secure tight seal when the plate pack is closed. Cloth caulking groove provide easy installation and least maintenance of the filter cloth. CGR plates are recommended and necessary for leak proof conditions like toxic substance, acidic solutions etc. ‘O’ Ring are available in the different elastomers like EPDM , Neoprene , viton etc. These plates are available with centre, top, bottom and corner feeding with adaptable diameter and designed at 8 and 16 bar operating pressure.