A pre-filter is typically installed after the water meter on the main household inlet pipeline, serving as the first stage of filtration for the entire house’s water supply. When selecting the installation location, ensure:
Sufficient space around the filter for easy disassembly, cleaning, and maintenance (leave 20-30 cm of clearance on all sides).A dry environment, away from direct sunlight and heat sources (e.g., radiators, water heaters), to prevent accelerated aging of the mesh and other components.

High-quality stainless steel mesh pre-filters generally have minimal impact on water pressure, with a typical pressure drop of 0.01–0.03 MPa—a change that is barely noticeable during daily use.
However, if the mesh becomes severely clogged with debris and is not cleaned promptly, increased water flow resistance can cause a significant drop in pressure. Regular cleaning of the pre-filter (recommended every 1–3 months, depending on water quality) effectively prevents major pressure issues.

Stainless steel mesh pre-filters primarily filter large-particle impurities from water, including:
Sediment, rust, insect eggs, algae, and suspended solids.The filtration precision typically ranges from 40–100 microns, effectively intercepting visible solid contaminants in water.This protects downstream water appliances (e.g., water heaters, washing machines, water purifiers) from mechanical wear, reduces scale buildup, and extends their service life.