4040 Low Pressure RO Membrane – 4" x 40" Brackish Water Reverse Osmosis Element – 2,050 GPD – LPFT-4040

The Frotec LPFT-4040 is a 4" x 40" low pressure brackish water reverse osmosis membrane element for commercial RO systems: car wash spot-free rinse, restaurant and ice machine water, labs, greenhouses and small plant water systems. It fits any standard 4" x 40" pressure vessel.

Specifications

• Model: Frotec LPFT-4040 (low pressure, brackish water)
• Size: 4" diameter x 40" long, standard 4040 element
• Permeate flow: 2,050 GPD (7.8 m³/day)
• Salt rejection: 99.5% minimum
• Active membrane area: 78 sq ft (7.2 m²)
• Membrane: thin-film polyamide composite, spiral wound
• Maximum operating pressure: 600 psi (4.14 MPa)
• Maximum operating temperature: 113°F (45°C)

Flow and rejection are the manufacturer's rated values under its standard test conditions; actual output depends on feed pressure, temperature and water quality.

Cross-reference: fits the same position as

This element is a compatible replacement in systems built for standard 4" x 40" tap water and brackish water elements, including:

• FilmTec (DuPont): BW30-4040, BW30LE-4040, LE-4040, LP-4040, TW30-4040
• Hydranautics: CPA2-4040, ESPA1-4040, ESPA-4040
• Toray: TM710, TM710D
• CSM / Toray Chemical: RE4040-BE, RE4040-BN
• Axeon: HF1-4040, HF2-4040
• Vontron: LP21-4040, LP22-4040
• Car wash supplier part numbers: Dultmeier EPHR4040, AMI M-T4040A, Kleen-Rite ROMF2200-B-PRO, Hydron BW-4040

Part numbers are listed for compatibility reference only. CFS / Filters4you is not affiliated with these manufacturers, and this is not an original manufacturer part. Check that the flow rate and operating pressure suit your system; for very low pressure systems (under about 100 psi) the ULP-4040 ultra low pressure element is the better match.

Good to know

• Standard 4040 dimensions with a 0.75" permeate tube.
• Flush the first 30 minutes of permeate to drain after installing a new element.
• Distributors and dealers: case pricing is available through our wholesale program.