Inline pressure regulator for water purifiers, faucets and related equipment. It reduces inlet pressure to a safe level, helping protect filters and fixtures while reducing water hammer. Tool adjustment: rotate counterclockwise to lower pressure. Preset range 22.5 kg. No tools required; ready to install. Broad compatibility: fits most water purifiers, faucets and inline water equipment with standard connections. Durable construction: made from materials for long service life. Pressure stabilization: minimizes water hammer, reduces leakage and system stress when flow changes rapidly. Compact inline design: easy to mount in tight spaces and suitable for home, office and light commercial use. Typical applications: Home water purifier inlet to protect the purifier and extend its life. Kitchen faucet line to prevent hammer during rapid flow or when using a sprayer. RV, boat or small office water systems to stabilize pressure and prevent leaks.