Toray TM20N-400C Brackish Water Reverse Osmosis Membrane Element
The Toray TM20N-400C is a 8-inch (8040) brackish water reverse osmosis element built on Toray's cross-linked fully aromatic polyamide composite membrane, used for brackish and industrial water treatment. It has been replaced in Toray's current lineup by the TMG20D-400.
📄 Download the Current TMGD Series Datasheet (PDF)
Legacy Specifications
From the legacy Toray product bulletin (not the current catalog). Test conditions differ from current-series elements; see the current TMGD datasheet for the successor's specs.
| Specification | Value |
|---|---|
| Element Size | 8 in x 40 in (8040), 'C' = 1.125 in (29 mm) permeate/port tube |
| Active Membrane Area | 400 ft² (37 m²) |
| Nominal Salt Rejection | 99.5% |
| Product Flow Rate | 10,200 gpd (38.6 m³/d) |
| Max Operating Pressure | 365 psi |
| Max Feed Temperature | 113°F |
| Test Conditions | Ultra-low-pressure rating ~110 psi applied pressure (per distributor TMG20N-400C listing); legacy 'N' bulletin test condition not on current Toray datasheet |
| Shipping Weight | ~40 lbs (boxed) |
| Shipping Dimensions | 10" × 44" × 10" (boxed W × L × D) |
| HS Code (Tariff) | 8421.21.0000 — water filtering/purifying apparatus |
Typical Applications
- Brackish water purification
- Industrial process and boiler feed water
- Municipal drinking water
- Water demineralization
- Cooling tower make-up
Frequently Asked Questions
Is the Toray TM20N-400C still available?
The TM20N-400C is a legacy element that Toray has superseded with the TMG20D-400. Contact ForeverPure for current availability and the recommended replacement.
What replaced the TM20N-400C?
Toray's current equivalent is the TMG20D-400. We can help you cross-reference and size the replacement.
