Sand Filter FRP
Working pressure: <150 psi
Working temperature: 1-50℃
Material: FRP+PE
Cycle times: 100,000 times
Diameter: 16 inches (410 mm)
Height: 65 inches (1660 mm)
FRP Vessel 1665 Volume: 180L (47.57 gallons)
Flowrate: 1.5-3 m³/h
Product Overview
🔹 The Sand Filter FRP (Model: 1665) is a high-strength, corrosion-resistant filtration vessel engineered for industrial, commercial, and municipal water treatment. 2.5'' opening size.
Built with PE inner liner and fiberglass-reinforced plastic (FRP) outer shell, it ensures long-term structural integrity under high pressure and corrosive environments.
Designed for sediment removal, turbidity reduction, and particulate filtration, this FRP sand filter provides stable performance in pre-treatment systems, desalination plants, cooling towers, aquaculture farms, and wastewater recycling facilities.
Its lightweight yet durable construction minimizes installation costs, while the NSF/CE-certified design guarantees water safety and reliability.
Compact, customizable, and compatible with a variety of filter media (quartz sand, anthracite, activated carbon, manganese greensand), it's the industry's go-to solution for high-efficiency water purification.
1665 Sand Filter FRP Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | FRP Filter Tank |
| Model | 1665 |
| Material | PE + FRP |
| Opening | 2.5" Threaded |
| Diameter | 16 inches (410 mm) |
| Height | 65 inches (1660 mm) |
| Volume | 180L (47.57 gallons) |
| Flowrate | 1.5 – 3 m³/h |
| Working Pressure | Max 150 PSI (1.03 MPa) |
| Working Temperature | Max 50°C |
| Max Vacuum | 17 KPa (5″Hg) |
| Weight | Approx. 24 kg |
| Color Options | Natural / Blue / Custom |
| Certification | NSF / CE / ISO 9001 |
Technical parameter diagram:

Note: The standard does not include core components such as water distributors, automatic valves, and central pipes by default.
If you want to know what accessories a complete FRP sand filter set includes, please read this blog: What Accessories Are Included with an FRP Tank?
Key Features & Advantages
1. Premium Composite Material Engineering
Constructed with industrial-grade FRP and PE lining, ensuring zero corrosion, high-pressure resistance, and chemical stability - ideal for saline or industrial wastewater environments.
2. Lightweight & Space-Saving Design
Up to 60% lighter than traditional steel tanks, reducing transport and installation costs without compromising strength.
3. Multi-Sector Compatibility
Supports applications in hotels, food processing, textile manufacturing, aquaculture, and power plants.
4. Customizable Aesthetics
Available in natural, blue, or custom color finishes, with branding options for OEM/ODM partners.
5. Long-Term Reliability
Tested for 100,000+ pressure cycles; backed by a 5-year warranty and third-party quality inspection reports.
6. Easy Media Replacement
Top-mounted 2.5" threaded opening simplifies filter media loading and cleaning, minimizing downtime.

Typical Applications
- RO and UF pre-treatment
- Cooling tower make-up water
- Industrial process water polishing
- Municipal water softening
- Aquaculture & irrigation filtration
- Effluent recycling systems
How It Works
1️⃣ Inlet Water Flow enters through the top distributor.
2️⃣ Filtration Media Layer (sand, anthracite, carbon) traps suspended solids and sediments.
3️⃣ Clean Water Outlet at the bottom collector ensures even flow and low pressure drop.
4️⃣ Backwash Cycle periodically reverses flow to remove trapped impurities and restore efficiency.
1665 Sand Filter FRP can fill filter media:
| Quartz sand | About 220kg |
| Activated carbon | About 65kg |
| Softening resin | About 100kg |
Certifications & Quality Assurance
All INK-BLUE Sand Filter FRP vessels are produced under strict international standards:
✅ ISO 9001 Quality Management System
✅ CE & NSF Certified for safety and structural reliability
✅ SGS Pressure & Corrosion Resistance Testing Approved
✅ 5-Year Structural Warranty with full technical support

CE certification

EMS 9001

EMS certification

ISO 9001 certification

QMS certification

NSF certification
Packaging & Delivery
📦 Each FRP tank is foam-wrapped and secured in wooden frames.
- Standard export packaging for sea or land transport.
- Production cycle: 3-7 working days
- Shipping time: Depends on the shipping method. By sea, it's generally 20-30 days, depending on the shipping company and customs clearance.
- MOQ: 10
- Payment terms: T/T, L/C
- Quality certifications: NSF, CE, ISO9001
- Product colors: Original color and blue are standard colors; other colors require customization.
- Container load: 20GP / 40HQ configurations available for bulk shipments.
How many units of 1665 Sand Filter FRP can be held in a container?
| 20GP | About 95pcs |
| 40HQ | About 195pcs |

FAQ
Q1: What's the difference between FRP and steel sand filters?
A1: FRP filters are lighter, rust-free, and chemical-resistant - ideal for corrosive or outdoor applications, while steel requires regular maintenance.
Q2: Can this model handle seawater or saline feed?
A2: Yes. The PE+FRP composite is designed for high-chloride environments and prevents oxidation or scaling.
Q3: What media can be used inside the FRP sand filter?
A3: Quartz sand, anthracite, activated carbon, or manganese greensand, depending on your target contaminants.
Q4: Is the 1665 model suitable for RO pre-filtration?
A4: Absolutely. It's one of the most commonly used vessels in RO pre-treatment lines.
Q5: How often should I replace the filtration media?
A5: Typically every 6–12 months, depending on water quality and operation cycles.

INK-BLUE: One-stop water treatment solution expert in China
One-stop service (entire system & full set of accessories)
Quick quotation response within 24 hours
Drawing and video installation guide from the engineers in detail
OEM design is available
Five-year warranty and lifetime after-sales service
Hot Tags: sand filter frp, China sand filter frp manufacturers, suppliers, factory, 3672 FRP Vessel, water tank for storing gaseous materials, water tank for storing solutions, water tank stand, water tank valve, water tank without accessories
Previous
3072 FRP TankYou Might Also Like
Send Inquiry












