Pure Freedom HF4 4021 (21") Reverse Osmosis Membrane delivers exceptional performance with a 99% average rejection rate, engineered for higher permeate flow at lower pressures.
Operating efficiently from as low as 6.9 bar, this membrane is ideal for tap water applications with feed water concentrations of 500 mg/l or less, whilst achieving optimal performance at 10.3 bar.
The standard 4-inch size features protective tape wound exterior construction for durability and reliability in demanding water treatment applications.