Korvia filter · Stage 3

RO Membrane Filter

Membrane filters are thin, semi-permeable barriers with microscopic pores. Only particles smaller than the pore size pass through, giving precise and reliable filtration.

Stage 3 of RO
0.0001 µm pores
Removes dissolved salts

₹2,650 MRP · best price on call

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How membrane filtration works

Pressure pushes unfiltered water (the feed stream) through the membrane:

Permeate is the clean water that passes through.
Retentate is the larger particles and contaminants the membrane blocks.

Unlike depth filters, membrane filters give absolute filtration: every particle larger than the pore size is removed.

Key advantages

High efficiency: filters down to the molecular level
Selective: removes specific contaminants by size
Chemical-free: little or no need for chemical additives
Consistent quality: reliable, high-purity output
Space-saving: compact systems for small spaces
Eco-friendly: reduces waste

Types of membrane filters

Membrane filters are grouped by pore size and what they remove. Korvia uses reverse osmosis (RO), the finest of the four.

Filter type	Pore size (µm)	Removes
Microfiltration (MF)	0.1 – 10	Bacteria, suspended solids, algae, silt
Ultrafiltration (UF)	0.001 – 0.1	Viruses, proteins, colloids, oils
Nanofiltration (NF)	0.0001 – 0.001	Multivalent ions (e.g. Ca²⁺, Mg²⁺), organics
Reverse osmosis (RO)	0.00001 – 0.0001	Nearly all dissolved salts and solids