Compact 2.5 x 21 Inch Seawater RO Membrane for Small Boats

Introduction

The 2.5 x 21 Inch Seawater RO Membrane is a vital component for small boat watermaker systems, engineered to produce fresh water through efficient seawater desalination. Designed for DIY enthusiasts and small boat owners, this high-performance seawater reverse osmosis (SWRO) membrane boasts a 99.6% salt rejection rate, ideal for marine applications. When paired with the Pumptec 107SS pump (sold separately), it delivers approximately 24-30 gallons per day (GPD), perfect for boats with limited power. For optimized setups, it can produce up to 200 GPD with a pump meeting the manufacturer’s recommended flow rate. Compatible with the 2.5 x 21 inch 1200 PSI fiberglass pressure vessel (sold separately), and proudly made in the USA, this membrane ensures top-quality performance. Adding a second membrane can  increase output even with the Pumptec 107ss, enhancing efficiency and decreasing the runtime of the system.

Key Features

• High Salt Rejection: Achieves 99.6% stabilized salt rejection, ensuring clean, safe drinking water.
• Efficient Output: Produces 24-30 GPD with the Pumptec 107SS pump, or up to 200 GPD with optimal flow.
• Compact Design: Measures 2.5" in diameter and 21" in length, fitting seamlessly into tight onboard spaces.
• Universal Compatibility: Fits industry-standard 2.5" x 21" pressure vessels, including AMI and FilmTec models.
• Durable Construction: Built to withstand harsh seawater conditions, ensuring long-term performance.
• Made in the USA: Manufactured in Vista, California, at Applied Membranes, Inc.'s ISO 9001:2015 and NSF-certified facility.

Why Choose This Membrane?

• Compact Fit: Its 2.5" x 21" size is perfect for space-constrained vessels.
• Exceptional Efficiency: High salt rejection ensures a steady supply of fresh water.
• Low Maintenance: Durable design reduces upkeep, saving time and costs.
• Versatile Compatibility: Works with standard 2.5" x 21" pressure vessels, offering flexibility.
• Made in the USA: Crafted with precision in Vista, California, ensuring top-tier quality.
• Sustainable Performance: Supports solar-powered systems with the Pumptec 107SS pump.

Technical Specifications

Role in Your Watermaker System

This seawater RO membrane is the core of your watermaker, filtering seawater to produce fresh water:

• Filters Impurities: Removes 99.6% of salts and contaminants.
• Supports High Pressure: Operates efficiently at 800 PSI.
• Integrates Seamlessly: Fits standard 2.5" x 21" pressure vessels.

Paired with the Pumptec 107SS pump and a compatible pressure vessel (both sold separately), it forms the heart of your complete watermaker system.

Manufacturer’s Performance Data

Under optimal conditions, this membrane delivers:

• Permeate Flow: Up to 200 GPD with a pump providing ~0.5 GPM feed flow at 800 PSI for efficient desalination.
• Test Conditions: 35,000 ppm seawater, 77°F, 8% recovery, 800 PSI.

With the Pumptec 107SS pump’s 0.23 GPM flow, it is suitable for compact, low-power setups. For higher production, consider a dual-membrane configuration. or another 800 psi pump with a higher flow rate.

Maximize Output with Dual Membranes

For users of the Pumptec 107SS pump, adding a second 2.5 x 21 Inch Seawater RO Membrane in a dual-vessel setup can enhance performance:

• Increased Water Production
• Reduce Run-Time: Produce more water in less time, extending system lifespan.
• Boost Efficiency: Shorter run-times lower energy use, perfect for small boats with limited power, especially with the 12V Pumptec 107SS.

If your boat has space for two pressure vessels, this setup optimizes your watermaker. Contact us to discuss suitability!

Energy-Efficient Desalination with the Pumptec 107SS

Pair this membrane with the Pumptec 107SS pump, a high-pressure, low-volume pump delivering 0.23 GPM at 800 PSI. Its energy efficiency is ideal for small boats, with the 12V version supporting solar power for off-grid desalination. Sold separately, this combination ensures a sustainable watermaker system.

Understanding Reverse Osmosis

Reverse osmosis (RO) uses a semi-permeable membrane to remove salts and impurities from seawater, producing fresh water. The membrane’s role includes:

• Filtering seawater with 99.6% salt rejection.
• Operating at 800 PSI for efficient desalination.
• Ensuring high-quality water output.

Installation and Maintenance Tips

To maximize performance:

• Proper Installation: Ensure correct orientation in the pressure vessel.
• Regular Cleaning: Flush with fresh water after use to prevent salt buildup.
• Inspect Regularly: Check for fouling; clean or replace as needed.
• Replace Periodically: Typically every 2-3 years, based on usage.

Why Small Boat Owners Love This Membrane

This membrane is tailored for small boat watermakers:

• Compact Fit: Perfect for tight spaces.
• Energy Efficiency: Supports low-power systems with the Pumptec 107SS.
• Durability: Built for harsh marine conditions.
• Ease of Use: Simplifies setup and maintenance.

Frequently Asked Questions

• What is this membrane? A 2.5" x 21" SWRO membrane for marine watermakers.
• What pressure vessels are compatible? Fits standard 2.5" x 21" vessels, like the PV2521A1200E.
• What’s the output: up to 200 GPD with optimal flow for desalination (107ss outputs less)
• Can it be used with solar power? Yes, with the 12V Pumptec 107SS pump.
• How does a second membrane help? Doubles output to with the 107SS.
• How often should I replace it? Every 2-3 years, depending on usage.

Order Today

Build your small boat watermaker with this 2.5 x 21 Inch Seawater RO Membrane. Pair it with the Pumptec 107SS pump and PV2521A1200E pressure vessel (sold separately at MistingDirect.com) for an efficient, solar-compatible system. Consider a second membrane to maximize output. Order now at MistingDirect.com and sail with confidence!