ITEM NAME:Reverse Osmosis Element Water Filter Membrane Element ULP1812-75GDP 12'' ã€NM& Description: ULP1812-75G circle composite membrane. For a variety of household water, hospital, laboratory pure water device and other small systems. ULP series membrane elements applied to salt content of about 2000ppm below surface water, groundwater, tap water and other water desalination treatment. Specifications: Model: ULP1812-75 The diameter of membrane: 1.8 inches(4.5cm) The length of membrane: 12 inches (30cm) The membrane at 25 ℃ temperature , the water pressure was under 5.5 kg.For a variety of household water, hospital, laboratory pure water device and other small systems.