

SALE PROHIBITED TO PERSONS UNDER 18 - FREE SHIPPING FROM €40 (Mainland Spain only - Max. 25 Kg)
High flow reverse osmosis membrane 3000 L/day aimed at indoor cultivation that requires stable base water and low EC/TDS. Performance up to 125 L/h (approx. 3000 L/day), reduction of salts and heavy metals up to 95% and elimination of chlorine up to 99%.
Compatible with GROWMAX 3000 type equipment.
Available at Hydroponics Blanes, online grow shop with discreet shipping and support from a trusted Grow Shop.

The High Flow Reverse Osmosis Membrane 3000 L/day (≈500 GPD) is designed for installations that require large volumes of osmotized water to prepare nutrient solutions, rinses, and substrate washes with reproducible parameters.
The semipermeable element separates a permeate of low conductivity from the reject flow, removing dissolved contaminants.
With optimal pressure and temperature conditions, the membrane reaches up to 125 L/h, enough to supply large tanks and simultaneous work lines.
The retention of mineral salts, heavy metals, herbicides, and pesticides reduces the risk of nutritional blockage and build-up in substrate and pipes; in addition, the removal of chlorine protects beneficial microbiota and delicate roots.
Integrated with suitable prefilters, pumps, hoses, and in-line filters, it provides uniformity to the irrigation system and reduces incidents in drippers.
Service life depends on the quality of the inlet water, available pressure, and liters produced; it is advisable to replace when the EC of the permeate rises compared to initial values or when the effective flow drops below the target.
Compatibility with GROWMAX 3000 type equipment facilitates replacement without special adapters, maintaining production standards for indoor crop irrigation consistently.
In indoor growing environments with high plant density, a predictable base water simplifies A/B recipes and minimizes precipitates. The High Flow Reverse Osmosis Membrane 3000 L/day reduces carbonates, adjusts the starting point for Ca/Mg and micronutrients, and keeps lines clean for longer. The reference flow (125 L/h) allows for fast tank filling scheduling, ensures availability for staggered irrigation, and supports washing processes without bottlenecks.
For a balanced set, it is advisable to add sediment and activated carbon prefilters in good condition, a pressure gauge to check pressure, a properly sized restrictor, a check valve, and a TDS/EC meter to audit the permeate. On the application side, graduated tanks, submersible pumps with appropriate flow, 8–12 mm hoses, in-line filters, and a flow meter help standardize liters per plant. This configuration integrates the membrane into a robust irrigation system for indoor crop irrigation with precision and repeatability.
Operational tip: write down the installation date, initial TDS, and typical pressure on a visible label on the equipment; this data speeds up diagnostics and maintenance decisions.
An investment that brings stability to recipes, fewer incidents in lines, and savings on maintenance. At Hydroponics Blanes there are packs with prefilters and other irrigation accessories, as well as promotions in the online grow shop. Check availability and conditions for discreet shipping throughout Spain and the EU.
Buy at Hydroponics Blanes, a trusted Grow Shop that advises on compatibility with GROWMAX 3000 type systems, flow sizing, and proper integration within the irrigation system. Technical support to select meters, pumps, and hoses, and to plan indoor crop irrigation routines with optimized base water.
The High Flow Reverse Osmosis Membrane 3000 L/day offers high flow, effective reduction of salts and heavy metals, and chlorine removal, providing a predictable starting water in grow tents and rooms. A key piece for batch uniformity, root health, and protection of pipes and pumps.
Strategic option for those looking to standardize processes: the High Flow Reverse Osmosis Membrane 3000 L/day integrates with tanks, pumps, and other irrigation accessories available at Hydroponics Blanes —online grow shop with discreet shipping—, strengthening the reliability of the irrigation system and efficiency when irrigating indoor crops.