RHF high-performance series household film products are designed and produced by Nisshin Hengli. This series of household membranes mainly responds to the market demand of high recovery rate and high salt rejection rate. For strict water efficiency standards, the membrane element can be operated under high recovery conditions to ensure water quality and service life, and to solve the festival at a lower cost. Water puzzle. RTL receives national drinking water sanitation safety approvals to provide consumers with clean drinking water. Each product undergoes rigorous testing to provide reliable and high quality products to consumers around the world.