The reverse osmosis membrane DOW Filmtec BW30HRLE-440 Dry is a high-performance professional solution for brackish water treatment systems. It is designed for reverse osmosis plant operators seeking advanced filtration with high water purity and low energy consumption.

Low operating pressure, high salt rejection
The BW30HRLE-440 offers strong salt rejection while operating at up to 33% lower pressure compared to conventional membranes with similar performance. At the same time, it provides excellent rejection of silica, boron, nitrates, isopropyl alcohol (IPA), and ammonium.

Enhanced active area & cleaning durability
With increased active area and the broadest cleaning pH range (1–13), the membrane delivers effective cleaning performance and a long service life, even under demanding chemical conditions.

Dry version (without liquid preservative)
The Dry version is supplied without liquid preservative, allowing longer storage at room temperature without the need for refrigeration.

Key features:

• Element type: Spiral-wound thin-film composite polyamide membrane
• Size: 8040 (8" x 40")
• Active area: 440 ft² (41 m²)
• Feed spacer thickness: 28 mil
• Nominal permeate flow: 12,650 GPD (48 m³/day)
• Typical stabilized salt rejection: 99.3%
• Minimum salt rejection: 99.1%
• Cleaning pH range: 1 – 13

Technical specifications:

• Model: BW30HRLE-440
• Version: Dry (without liquid preservative)
• Type: Spiral-wound, thin-film composite polyamide (TFC)
• Element size: 8" x 40" (8040)
• Active area: 440 ft² (41 m²)
• Feed spacer thickness: 28 mil
• Nominal flow rate: 12,650 GPD (48 m³/day)
• Typical salt rejection: 99.3%
• Minimum salt rejection: 99.1%
• Cleaning pH range: 1 – 13
• Test conditions: 2,000 ppm NaCl, 150 psi (10.3 bar), 25°C, pH 8, 15% recovery
• Manufacturer: DOW / Filmtec (DuPont)