The inline pipeline filter is a high-end sanitary filter housing with a compact and lightweight design that fully complies with sanitary and GMP requirements. All processing is done using sanitary fittings. The filter housing undergoes multiple production processes, ensuring no dead ends, no leaks, easy cleaning, no residual liquids, and an upward inlet and downward outlet. The design is compact and reasonable, suitable for online testing, pipeline connections, or use as a respirator. Various types of filter cartridges such as PP melt-blown, wire-wound, and folded can be installed inside to meet different process requirements. This product is widely used in industries such as biopharmaceuticals, food and beverages, purified water, and biotechnology for pre-filtration and terminal precision filtration.