LE-4040 FilmTec DOW / DuPont Membranes

ESPA1-4040 Hydranautics / Nitto 150 PSI 2,600 GPD 4 x 40 inch Membranes

LG BW 4040 UES 100 PSI 2700 GPD 4 x 40 inch Ultra-Energy Saving Membrane LG Chem Water Solutions

Replaces SW30-2521 FilmTec DOW / DuPont 800 PSI 300 GPD 2.5 x 21 inch Membranes ( MEM-2521SW-HF )

SW30-2540 FilmTec™ DOW / DuPont Seawater 800 PSI 600 GPD 2.5 x 40 inch Membranes

LG BW 4040 R 225 PSI 2,500 GPD 4 x 40 inch LG Chem Water Solutions High Rejection Brackish Water Membrane