TLC Memb, 4x40, 2400 GPD @ 225 PSI

This Toray TLC reverse osmosis membrane is a 4" x 40" element rated for 2,400 GPD at 225 PSI, making it a true workhorse choice for commercial RO applications that demand high throughput and consistent water quality. As a thin-film composite membrane, it works by rejecting dissolved salts and a broad spectrum of other contaminants while allowing purified permeate water to pass through, forming the productive heart of any commercial reverse osmosis train or system.

The 4" x 40" form factor is a well-established industry-standard size that drops directly into compatible commercial pressure vessels, simplifying both new builds and membrane replacements in existing systems. The substantial 2,400 GPD production rating reflects significant capacity, making this element well suited to businesses, light-industrial operations, and water treatment facilities that need to produce meaningful volumes of high-purity water. The 225 PSI test condition associated with that rating indicates the membrane is engineered to operate under the higher feed pressures that are characteristic of commercial RO systems, where pressure drives the purification process.

• 4" x 40" reverse osmosis membrane element
• Rated 2,400 GPD at 225 PSI test conditions
• Toray TLC thin-film composite construction
• Standard sizing for common commercial RO pressure vessels
• High-capacity output for commercial and light-industrial use
• Element weight approximately 7.0 lbs

Toray is a globally recognized and respected membrane manufacturer, and this element is suited to a range of demanding applications such as commercial drinking water, food and beverage production, and process water, all settings where consistent contaminant rejection and reliable output volume are essential. Proper pretreatment is critical to protecting the membrane and extending its useful service life, so upstream sediment filtration and chlorine removal should always be in place ahead of the element. Install it in a correctly sized pressure vessel and operate the system within the manufacturer's recommended pressure, flow, and recovery guidelines for the best performance and the longest possible membrane life. Monitoring permeate quality and pressure differential over time helps operators anticipate when cleaning or replacement is due, allowing maintenance to be scheduled before water quality slips, and standardizing on a widely available 4" x 40" element like this one keeps replacements straightforward whenever a membrane in the array finally reaches the end of its service life.