B2B & Volume Sales — Call for Availability: 8″ membrane elements are sold business-to-business, typically by the case or in project quantities. Stock rotates quickly, so please call +1 (408) 969-2688 or email Sales@ForeverPure.com to confirm current availability, volume pricing, and lead time.
Toray TM820-400 Seawater Reverse Osmosis Membrane Element
Legacy element — superseded. Toray no longer lists the TM820-400 in its current catalog. The current equivalent is the Toray TM820K-400. Please contact us for the current replacement and pricing.
The Toray TM820-400 is a 8040 (8" x 40") seawater reverse osmosis element built on Toray's cross-linked fully aromatic polyamide composite membrane, used for seawater desalination and high-salinity water treatment. It has been replaced in Toray's current lineup by the TM820K-400.
📄 Download the Current TM800K Series Datasheet (PDF)
Typical Applications
- Seawater desalination (SWRO)
- High-salinity feed water
- Industrial wastewater treatment
- High-recovery RO systems
- Marine and offshore watermakers
Frequently Asked Questions
Is the Toray TM820-400 still available?
The TM820-400 is a legacy element that Toray has superseded with the TM820K-400. Contact ForeverPure for current availability and the recommended replacement.
What replaced the TM820-400?
Toray's current equivalent is the TM820K-400. We can help you cross-reference and size the replacement.
Need help selecting or sizing? We can cross-reference this legacy element to its current Toray replacement. ForeverPure provides full technical support and RO system design assistance. Contact us at 408-969-2688 or sales@foreverpureplace.com.
