🔷 25kg EGFM Glass Filter Media Grade 2 (G2) – 1mm to 3mm
🔷 Superior Eco-Friendly Pool Filtration – 30% Better Turbidity Removal Than Sand
📋 Product Overview
Eco Glass Filter Media Grade 2 (EGFM G2) is the environmentally friendly and cost-effective filter media that provides a superior alternative to traditional silica sand. Made from 100% recycled glass sourced within the UK, EGFM doesn’t involve intrusive mining or the use of scarce natural resources.
With its angular to sub-angular particle shape and bound silica content, EGFM Grade 2 delivers a 30% improvement in turbidity removal compared to silica sand. This medium-grade media with a particle size of 1mm to 3mm represents the ideal balance between filtration efficiency and optimal flow performance, making it perfect for achieving crystal-clear water whilst maintaining excellent hydraulic characteristics.
EGFM Grade 2 is the equivalent of 8/16 grade sand and is suitable for both domestic and commercial pool filtration systems with laterals or nozzle plates. All grades are carefully milled to remove sharp points for safe handling and professional installation.
⭐ Key Features
✅ 30% Better Filtration – Angular particle shape removes up to 30% more material and pollutants than equivalent sand media
✅ 50% Less Water Waste – Superior permeability means backwashing uses 50% less water than sand, reducing water bills and environmental impact
✅ 15% Less Media Required – Lower density than sand means you need 15% less EGFM by volume to fill equivalent filters
✅ Bio-Fouling Resistant – Smooth, non-porous surface prevents bacteria from becoming trapped in cracks or flaws, unlike silica sand
✅ Extended Lifespan – Doesn’t degrade like sand, lasting up to 3 times longer with 5-year recommended replacement intervals
✅ Safe to Handle – Contains no crystalline silica, providing better lung protection for handlers; all sharp points milled down
✅ Chemically Inert – Free from heavy metals including arsenic, lead, asbestos, beryllium, and titanium
✅ Eco-Friendly Choice – Made from 100% recycled UK glass, diverting waste from landfills and avoiding sand mining
🔧 Technical Specifications
| Specification | Detail |
|---|---|
| Product Type | Eco Glass Filter Media |
| Grade | Grade 2 (G2) |
| Particle Size Range | 1mm – 3mm |
| Sand Equivalent | 8/16 Grade Sand |
| Package Weight | 25kg |
| Material | 100% Recycled Glass (UK sourced) |
| Colour | White/Clear |
| Particle Shape | Angular to Sub-Angular |
| Composition | Non-Porous, Chemically Inert |
| Application | Medium Filtration Layer |
| Surface Characteristics | Smooth, Bio-Resistant |
| Silica Content | No Free Crystalline Silica |
📊 Grade Selection Guide
🎯 EGFM is available in three grades, each designed for specific filtration applications:
| Grade | Grain Size | Sand Equivalent | Recommended Use |
|---|---|---|---|
| Grade 1 (G1) | 0.5mm – 1mm | 16/30 Grade Sand | Primary filtration layer – finest filtration for main debris capture |
| Grade 2 (G2) | 1mm – 3mm | 8/16 Grade Sand | Medium filtration layer – balanced flow and filtration efficiency |
| Grade 3 (G3) | 3mm – 6mm | 6mm Gravel | Support/drainage layer – replaces pea gravel at filter base |
Manufacturer Recommendation:
- Use Grade 1 in place of silica sand (use 15% less by volume)
- Use Grade 3 in place of pea gravel as per your filter manufacturer’s guide
- Grade 2 is commonly used as the primary filtration layer in many pool systems or as part of a multi-grade bed configuration for larger commercial filters
📐 Quantity Guide
🧮 EGFM requires 15% less media by volume than sand due to its lower bulk density. When replacing sand with EGFM, reduce the quantity accordingly.
Quick Conversion Guide:
| Original Sand Requirement | EGFM Required (15% Less) |
|---|---|
| 25kg | 21.25kg |
| 50kg | 42.5kg |
| 75kg | 63.75kg |
| 100kg | 85kg |
| 150kg | 127.5kg |
| 200kg | 170kg |
Important Notes:
- Always refer to your filter manufacturer’s media requirements
- For multi-grade bed configurations, use Grade 1 for the primary filtration layer and Grade 3 for the support layer
- When in doubt, consult your pool professional for specific filter requirements
⚠️ Please consult manufacturer guidelines for your specific filter model and size
💎 Performance Benefits
Superior Filtration Efficiency: EGFM’s angular to sub-angular particle shape provides a 30% improvement in turbidity removal compared to silica sand, generally removing finer particles from water than equivalent grades of sand.
Enhanced Water Clarity: The non-porous composition means EGFM is less likely to clump or channel than silica sand, ensuring consistent water flow and improved filtration throughout the filter bed.
Reduced Chemical Usage: Less susceptible to bio-fouling means less remedial action required and reduced chemical treatment to eliminate pollutants – translating to significant savings on sanitisers and water treatment chemicals.
Efficient Backwashing: With superior permeability, backwashes take less time and use up to 50% less water – saving on water/sewer charges, energy costs, and reducing heating expenses from water loss.
Extended Filter Runs: Independent trials have shown filter runs with EGFM may be up to 50% longer than sand, reducing maintenance frequency and operational costs.
Longevity: Unlike sand which degrades over time, EGFM maintains its effectiveness and doesn’t need changing even when filters are due for refurbishment – though 5-year replacement is recommended for optimal performance.
🎯 Real World Applications
🏊♂️ Residential Swimming Pools Perfect for domestic pool filters, providing crystal-clear water with reduced maintenance. The 15% volume reduction means smaller, lighter media changes for homeowners.
🏢 Commercial Swimming Pools Ideal for public pools, leisure centres, and hotel facilities where water quality and operational efficiency are paramount. Extended filter runs reduce staff intervention requirements.
🛁 Hot Tubs & Spas Excellent for spa filtration systems requiring fine particle removal. Bio-resistance properties are particularly beneficial in warm water environments where bacterial growth is a concern.
🌿 Ponds & Water Features Suitable for ornamental ponds and water features where natural filtration and environmental credentials are important considerations.
🏭 Industrial & Water Treatment Used in industrial wastewater effluent, grey water recirculation systems, car wash facilities, storm water runoff, and boiler feed/cooling tower systems.
🔄 Installation Notes
🛠️ Sand-to-EGFM Conversion Process:
- Preparation: Drain your filter and remove all existing sand/media
- Cleaning: Thoroughly clean the filter vessel and inspect laterals or nozzle plates for damage
- Quantity Calculation: Use 15% less EGFM by volume than your original sand requirement
- Layer Installation: For multi-grade beds, install Grade 3 (support layer) first, followed by Grade 1 or Grade 2 (filtration layer)
- Initial Backwash: Before first use, backwash the media for 10-15 minutes, three consecutive times with clean water, then rinse for a further hour to remove fines
Backwash Guidance:
- The minimum fluidisation velocity for EGFM in an 80cm bed is 25m/h
- Velocity for 20% bed expansion is 40m/h
- In practice, backwash velocities required for EGFM are the same as sand
- Use of air scour prior to backwash is recommended with an air flow rate of 50-80m³/hr/m²
⚠️ Professional Installation Recommended: For commercial installations or if you’re unsure about conversion requirements, consult a qualified pool professional.
🏆 Why Choose EGFM Grade 2?
✅ Proven Performance – Independent trials confirm 30% better turbidity removal and up to 50% longer filter runs than sand
✅ Cost-Effective – Reduced water, chemical, and energy costs offset any price premium over sand within the first year
✅ Environmentally Responsible – Made from 100% recycled UK glass with no mining impact and zero heavy metal content
✅ Health & Safety – No crystalline silica means safer handling for installers and maintenance personnel
✅ Long-Term Value – Outlasts sand by up to 3 times, reducing lifetime media replacement costs
✅ Versatile Application – Suitable for domestic, commercial, and industrial filtration systems with laterals or nozzle plates
🛒 Why Buy From Parts4Tubs?
At Parts4Tubs, we understand that quality filtration is essential for maintaining crystal-clear, healthy water in your pool, hot tub, or spa. Here’s why customers choose us:
✅ Expert Knowledge – We specialise in pool and spa equipment, providing informed guidance on product selection and installation
✅ Quality Assured – We stock only genuine, high-quality products from trusted manufacturers
✅ UK-Based Business – Fast delivery across the UK with responsive customer service
✅ Competitive Pricing – Great value on professional-grade filtration media
✅ Technical Support – Assistance available for product queries and installation guidance
✅ Easy Returns – Hassle-free returns policy for your peace of mind
✨ Summary
EGFM Grade 2 Glass Filter Media represents the smart choice for pool and spa owners seeking superior filtration performance with genuine environmental credentials. With 30% better turbidity removal than sand, 50% water savings on backwashing, and a lifespan up to 3 times longer than traditional media, EGFM delivers outstanding value whilst reducing your environmental footprint. Made from 100% recycled UK glass, this professional-grade media is the proven, sustainable alternative for modern pool filtration.
Upgrade to EGFM Grade 2 today and experience the difference in water clarity, efficiency, and peace of mind.






