... installation of the filter head can not be on the same level, causes water distribution and gas ... hole ,embedded ABS plastic casing, with double-layer two-way high-quality twisted steel. High-grade cement, the ... are available upon request. The overall filter plate for on-site pouring, molding, thickness up to 150mm, ... 200mm, etc., per m2 filter head layout based on user needs, 49, 56, 64,etc.Main Usage ...