Dow-Filmtec 75 GPD TW30-1812-75 membrane

Filmtec TW30-1812-75 is a high-performance membrane element from Dow (USA), specifically designed for residential and commercial reverse osmosis systems, including Atoll A-575 series models and compatible units. It delivers deep, molecular-level water purification, removing up to 99% of harmful contaminants, such as salts, heavy metals, viruses, bacteria, organics, and cysts.

Main advantages:

✅ High output – up to 75 GPD (≈ 285 liters/day), ideal for families and high-demand environments
✅ High selectivity (up to 99%) – effectively removes salts, chlorine compounds, organics, and pathogens
✅ Chemical resistance – continuous operation in pH 2–11, cleaning allowed between pH 1–12 (up to 30 minutes)
✅ Low failure rate – stable performance under proper conditions, minimal risk of clogging or membrane damage
✅ TFC (thin-film composite) technology – polyamide structure offers superior filtration and durability
✅ Increased productivity vs. 60 psi membranes – up to 20% more water under similar conditions

Technical specifications:

▪️ Membrane type: TFC (thin-film composite polyamide)
▪️ Capacity: up to 75 GPD (≈ 285 L/day)
▪️ Operating pressure: up to 8 bar
▪️ Rejection rate: up to 99%
▪️ pH range (operation): 2–11
▪️ pH range (cleaning): 1–12 (max 30 min)
▪️ Max free chlorine: 0.1 mg/L
▪️ Max SDI (Silt Density Index): 5

Applications:

▪️ Household and commercial reverse osmosis systems
▪️ Atoll A-575 units and compatible models
▪️ Apartments, homes, offices, cafés, and small businesses requiring reliable clean water supply

Usage recommendations:

▪️ Service life: 24–30 months depending on water quality and filter maintenance
▪️ Prefiltration is essential – minimum mechanical and chemical stages required to protect the membrane
▪️ Free chlorine must be avoided – exceeding 0.1 mg/L may degrade the membrane

Filmtec TW30-1812-75 is a professional-grade choice for users who demand consistent performance and exceptional reliability. It ensures maximum purification, low operating costs, and long-term durability — making it one of the most trusted membranes on the market. Proven Dow technology — now available for your home.