1812 100 GPD Superflow – High‑Efficiency RO Membrane Element The 1812 100 GPD Superflow offers a powerful reverse‑osmosis solution for both residential and light‑commercial applications. Rated for approximately 100 gallons per day (~380 litres per day), this element is designed to work with low‑salinity feed water and standard 1812 housings. According to the “Superflow” spec sheet: Rated flow: 100 GPD (~380 L/day) Ideal for low TDS feed (< 500 ppm) Testing conditions: 60 psi, 25 °C, 250 ppm NaCl solution Key Specifications Model size: 1812 (1.8″ x 12″) housing compatible. Rated output: 100 GPD (~380 L/day) Typical rejection: ~93‑97% depending on conditions. Maximum operating temperature: 45 °C (113 °F) Maximum pressure: ~300 psi (21 bar) or similar for “Superflow” versions. Free chlorine tolerance: Generally
