Watermaker Membrane Vontron SW11-2521
Watermaker Membrane Replacement Vontron SW11-2521
Vontron SW11-2521, 2.5″ x 21″ Watermaker Membrane Replacement, Seawater. Replaces Filmtec SW30-2521 Seawater Membrane*
Vontron SW11-2521 is a standard size seawater membrane, widely used for watermakers, desalinators, seawater desalination systems, marine (yacht and boat), Navy and maritime applications. Commonly used in on-board Watermakers to create drinking water from seawater for yachts, boats, and cruise ships.
Watermaker Membrane DIY, Watermaker Parts.
Can be used for many watermakers' brands like:
- Spectra Ventura FT-MB-20., (Short membrane of Spectra Catalina 300).
- Most of Watermakers: Stella watermaker, Selmar water maker, FCI watermaker, Schenker watermaker, dessalator duo 100 and many more.
- Any watermaker that uses industry-standard 2.5x21 size seawater RO membranes.
Vontron SW11-2521 reverse osmosis replacement membrane may also be operated at lower pressure to reduce pump size, cost and operating expenses.
Membrane Product Specifications:
Stabilized Salt Rejection: 99.5%*
Minimum Salt Rejection: 99.3%
Max Permeate Flow: 270 gpd (1 m³/day)*
Membrane Area: 12 ft².
Diameter / Length: 2.5 inch / 21 inch.
*Test conditions: 32000 mg/l NaCl, 55.2 bar (800 psi), 25 °C (77 °F), pH 8, recovery rate 4%.
*Compatible with reverse osmosis membrane types:**
Filmtec SW30-2521 / Hydranautics SWC-2521 / CSM RE2521-SHF
**Check the data sheet for each membrane.
Operation Conditions:
Max. working pressure: 1200 psi (8.28MPa)
Max. Feed water flow: 6 gpm (1.4 m3/h)
Max. Temperature of Feed water: 45℃
Max. Feed water SDI (15 mins): 5.
pH Range of Feed water during Continuous Operation: 2～11
pH Range of Feed Water during Chemical Cleaning: 1～13
Residual chlorine Concentration of feed water ＜0.1ppm Max.
Pressure drop of single membrane element: 10psi (0.07MPa)
Manufactured by: Vontron, China.
Free Shipping Australia wide, Fast Delivery to New Zealand.
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Estimated Delivery:Jul 23 - Jul 27
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Next Day Dispatch
Watermaker Membrane Vontron SW11-2521
Watermaker Membrane Replacement Vontron SW11-2521
Vontron SW11-2521, 2.5″ x 21″ Watermaker Membrane Replacement, Seawater. Replaces Filmtec SW30-2521 Seawater Membrane*
Vontron SW11-2521 is a standard size seawater membrane, widely used for watermakers, desalinators, seawater desalination systems, marine (yacht and boat), Navy and maritime applications. Commonly used in on-board Watermakers to create drinking water from seawater for yachts, boats, and cruise ships.
Watermaker Membrane DIY, Watermaker Parts.
Can be used for many watermakers' brands like:
- Spectra Ventura FT-MB-20., (Short membrane of Spectra Catalina 300).
- Most of Watermakers: Stella watermaker, Selmar water maker, FCI watermaker, Schenker watermaker, dessalator duo 100 and many more.
- Any watermaker that uses industry-standard 2.5x21 size seawater RO membranes.
Vontron SW11-2521 reverse osmosis replacement membrane may also be operated at lower pressure to reduce pump size, cost and operating expenses.
Membrane Product Specifications:
Stabilized Salt Rejection: 99.5%*
Minimum Salt Rejection: 99.3%
Max Permeate Flow: 270 gpd (1 m³/day)*
Membrane Area: 12 ft².
Diameter / Length: 2.5 inch / 21 inch.
*Test conditions: 32000 mg/l NaCl, 55.2 bar (800 psi), 25 °C (77 °F), pH 8, recovery rate 4%.
*Compatible with reverse osmosis membrane types:**
Filmtec SW30-2521 / Hydranautics SWC-2521 / CSM RE2521-SHF
**Check the data sheet for each membrane.
Operation Conditions:
Max. working pressure: 1200 psi (8.28MPa)
Max. Feed water flow: 6 gpm (1.4 m3/h)
Max. Temperature of Feed water: 45℃
Max. Feed water SDI (15 mins): 5.
pH Range of Feed water during Continuous Operation: 2～11
pH Range of Feed Water during Chemical Cleaning: 1～13
Residual chlorine Concentration of feed water ＜0.1ppm Max.
Pressure drop of single membrane element: 10psi (0.07MPa)
Manufactured by: Vontron, China.
Free Shipping Australia wide, Fast Delivery to New Zealand.
Discover more in our FAQ
What types of industrial water treatment products do you offer?
We offer a comprehensive range of industrial water treatment solutions, including:
Filtration Systems – Effectively removes sediment, chlorine, and other impurities to enhance water purity and system longevity.
Reverse Osmosis Membranes – High-performance purification technology that eliminates dissolved solids, contaminants, and impurities for ultra-pure water.
Membrane Housings – Durable, high-pressure enclosures engineered to protect and optimize the performance of RO membranes.
Filter Cartridges – Precision-engineered sediment, carbon, and specialty filters designed to target specific contaminants for enhanced water treatment efficiency.
Chemical Dosing Systems – Precise chemical treatment for water.
Media FRP Pressure Vessels – High-pressure tanks for filtration media.
Ion Exchange Resins – Softening and demineralization solutions.
Water Instruments – pH meters, conductivity meters, and TDS testers.
Rotameter Flow Meters – Accurate flow measurement devices.
Watermaker Parts – Spare parts for marine and industrial watermakers.
Water Quality Test Kits – Portable and lab testing solutions.
How do I know which product is right for my application?
Choosing the right product depends on:
Water quality parameters (TDS, pH, hardness, contaminants)
Flow rate and pressure requirements
Industry-specific needs (food processing, pharmaceuticals, HVAC, etc.)
If you’re unsure, our technical support team can help you select the best solution.
Do you offer bulk pricing for large industrial orders?
Yes! We provide bulk discounts and custom pricing for high-volume orders. Contact us for a personalized quote.
How long does shipping take?
Shipping times depend on location and stock availability. Standard delivery is 3–7 business days for most regions. Expedited shipping options are available upon request.
What is your return policy?
We offer a 14-day return policy from the date of delivery. If you are not completely satisfied with your purchase, you can return the item for a refund or exchange, provided it meets our return conditions.
What happens if I receive a damaged or incorrect item?
If your item arrives damaged or you receive the wrong product, please contact us immediately at support@waterfilter.net.au with photos and your order number. We will send a replacement or issue a refund as per our return policy..
How long does shipping take?
Shipping times depend on location and stock availability. Standard delivery is 3–7 business days for most regions.
Expedited shipping options are available upon request.
Do you ship internationally?
Yes, we offer international shipping for most of our industrial water treatment products. Contact us for custom shipping quotes and lead times.