TNT 75 GPD RO Membrane – Stage 4

Description

What It Does

The core of the 7-Stage system. A thin-film composite (TFC) reverse osmosis membrane that reduces total dissolved solids (TDS), heavy-metal ions and other dissolved contaminants.

Key Features

• Thin-film composite membrane designed to reject dissolved solids and heavy-metal ions
• Up to 75 gallons per day (about 12 L/h) for typical household use
• Long service life when pre-filters are changed on schedule
• Sealed design for easy maintenance and to prevent bypass

Compatibility

Fits the TNT 7-Stage RO System. Not sure which filter you need? Use Find My Filter or call/text +1 (773) 502-7999.

Specifications

Stage	4 of 7 (RO membrane)
Technology	Thin-film composite (TFC) RO membrane
Capacity	Up to 75 GPD (about 12 L/h)*
Recovery rate	Up to 50 – 60% (system dependent)*
Operating pressure	0.1 – 0.4 MPa
Compatibility	TNT 7-Stage RO System and standard RO systems using a 75 GPD membrane
Origin	Vietnam

*Output, rejection and membrane life depend on feed water quality, temperature, pressure and regular pre-filter replacement.

Data Sheet

Download the TNT data sheet (PDF)

Replacement Guidance

Replace every 24–36 months depending on water quality and pre-filter maintenance. See our Filter Replacement Guide.

Installation

Turn off the water supply to your system and relieve pressure before replacing any filter. Follow your system instructions, then check for leaks.

FAQ

How do I know which filter I need?

Use Find My Filter or contact us with your system model.

Can I replace the filter myself?

Yes — filter changes are designed to be simple. Turn off the water first and follow your system instructions.

Which filters should I replace together?

Many customers replace Stages 1–3 together with the Complete Filter Set.

Complete Your Replacement

Replacing several filters at once? See the related filters below.