Dow Filmtec TW30-4021 RO Membrane TFC is a reverse osmosis membrane element with consistent and reliable system performance, which provides high quality drinking water at lower costs.

These RO membranes are tape wrapped and built quality industrial material, and its dry state allow for rapid start up.

Specifications:

Membrane Type: Polyamide Thin Film Composite

Dimensions: 4" D x 21"

Operating Pressure 225 psi

Max Temp.: 113 F / 45 C

Made in the USA

Quality Assurance

Enhanced quality control throughout the entire production process; eleven different quality checks monitor all critical dimensions and product characteristics. 100% of all DOW FILMTEC™ residential elements must pass an element integrity test before packaging to ensure our customers receive defect-free products.