The Hydrotech 41400009 is a 35 GPD (gallons per day) Thin Film Composite (TFC) reverse osmosis membrane designed specifically for Hydrotech RO systems. It reduces up to 95–99% of total dissolved solids (TDS), including lead, arsenic, fluoride, nitrates, chromium, cysts, and other dissolved contaminants, delivering cleaner, better-tasting drinking water straight from your under-sink RO system.

The Hydrotech 41400009 reverse osmosis membrane should be replaced every 2 to 3 years under normal use, depending on your feed water quality, TDS levels, and daily water consumption. Households with harder water or higher TDS may need to replace it sooner. To maximize the membrane's lifespan, always replace your Hydrotech pre- and post-filters (sediment and carbon) every 6–12 months to prevent chlorine damage and sediment fouling.

The Hydrotech 41400009 membrane features an ultra-fine 0.0001 micron filtration rating, which is fine enough to reject dissolved salts, heavy metals, and microscopic contaminants. It produces up to 35 gallons of purified water per day at optimal operating pressure (around 60 psi) and 77°F feed water temperature, making it ideal for residential Hydrotech RO drinking water systems.

Yes, the Hydrotech 41400009 is a direct OEM replacement designed for Hydrotech 4-stage and 5-stage reverse osmosis systems, including the 101, 102, 103, and Series 9000 units. It uses a standard-size RO housing and simply snaps into place. Always verify your system model number and housing size before installation to ensure proper fitment.

The Hydrotech 41400009 TFC membrane is manufactured to meet industry quality standards for reverse osmosis performance and contaminant reduction. While certification status can vary by production lot, the membrane is engineered to comply with NSF/ANSI Standard 58 performance criteria for reverse osmosis drinking water systems, ensuring reliable TDS and contaminant rejection for safe household use.