🔷 25kg EGFM Glass Filter Media Grade 3 (G3) – 3mm to 6mm

🔷 Premium Coarse-Grade Recycled Glass Support Media for Superior Pool Filtration Performance

📋 Product Overview

EGFM (Eco Glass Filter Media) Grade 3 is a premium coarse-grade filtration media manufactured from 100% recycled glass in the UK. This environmentally friendly alternative to traditional pea gravel serves as an essential support and base layer in multi-grade filter bed systems, providing optimal water distribution and superior backwash efficiency.

Unlike conventional gravel support media, EGFM Grade 3 features an angular to sub-angular particle shape that delivers a 30% improvement in turbidity removal compared to equivalent silica-based materials. The non-porous composition resists bio-fouling and clumping, whilst the smooth surface prevents bacteria from becoming trapped in cracks or flaws — resulting in cleaner, healthier filtration systems.

Suitable for both commercial and residential filters with laterals or nozzle plates, EGFM Grade 3 is the professional choice for pool owners seeking enhanced filtration performance with genuine environmental credentials.

⭐ Key Features

✅ Coarse Grade 3 Specification – 3mm to 6mm particle size range, equivalent to 6mm pea gravel, designed specifically for support and base layer applications

✅ 30% Better Filtration – Angular to sub-angular particle shape provides significantly improved turbidity removal over traditional silica sand and gravel

✅ 50% Water Savings on Backwash – Superior permeability means backwashing takes less time, dramatically reducing water consumption and associated costs

✅ 15% Less Media Required – Lower density than traditional gravel means you need less product to fill the equivalent filter volume

✅ Bio-Fouling Resistant – Smooth, non-porous glass surface prevents bacteria from becoming trapped, reducing chemical treatment requirements

✅ Extended Lifespan – Does not degrade like traditional media; recommended replacement every 5 years though the media itself remains effective

✅ Eco-Friendly UK Product – Made from 100% recycled glass in Britain, avoiding intrusive mining and use of scarce natural resources

✅ Milled for Safety – All sharp points removed during processing for safe handling and installation

🔧 Technical Specifications

Specification	Detail
Product Type	Eco Glass Filter Media
Grade	Grade 3 (G3)
Particle Size Range	3mm – 6mm
Sand Equivalent	6mm Gravel / Pea Gravel
Package Weight	25kg bag
Material	Recycled Glass
Origin	United Kingdom
Colour	White/Clear
Primary Application	Support/Base Layer
Filter Compatibility	Laterals and Nozzle Plates
Suitable For	Commercial and Residential

📊 Grade Selection Guide

🎯 EGFM is available in three grades to suit different filtration requirements. Each grade serves a specific purpose within your filter system:

Grade	Particle Size	Equivalent To	Recommended Use
Grade 1	0.5mm – 1mm	16/30 Grade Sand	Primary filtration layer (use 15% less than sand quantity)
Grade 2	1mm – 3mm	8/16 Grade Sand	Mid-layer filtration in multi-grade systems
Grade 3	3mm – 6mm	6mm Pea Gravel	Support/base layer for water distribution

Multi-Grade Installation Guidance:

For optimal filtration performance in multi-grade filter beds:

• Use Grade 3 as the bottom support layer (replaces pea gravel)
• Use Grade 1 as the primary filtration layer on top (use 15% less than manufacturer’s sand recommendation)
• Follow your filter manufacturer’s guidelines for layer depths

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📐 Quantity Guide

🧮 EGFM requires 15% less media by weight compared to traditional sand or gravel due to its lower density. When calculating your requirements:

General Guidance:

• Refer to your filter manufacturer’s recommended media quantities
• Reduce the total weight by 15% when replacing with EGFM
• Use Grade 3 in place of pea gravel as per your manufacturer’s guide
• Use Grade 1 in place of silica sand (less 15%)

Example Calculation:

Filter Requires	EGFM Required
50kg pea gravel	42.5kg Grade 3 EGFM
100kg pea gravel	85kg Grade 3 EGFM
150kg pea gravel	127.5kg Grade 3 EGFM

⚠️ Note: Always consult your specific filter manufacturer’s guidelines for exact media quantities and layer configurations. Contact our team if you require assistance with calculations for your particular filter system.

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💎 Performance Benefits

Superior Filtration Efficiency

EGFM Grade 3 delivers enhanced filtration performance through its engineered particle shape. The angular to sub-angular structure provides a 30% improvement in turbidity removal compared to equivalent silica-based materials, capturing finer particles and ensuring clearer water.

Reduced Water Consumption

The non-porous composition and superior permeability of glass media means backwash cycles complete faster and more efficiently. Users report up to 50% reduction in water usage during backwashing, resulting in significant savings on water and sewerage charges.

Lower Chemical Requirements

The smooth glass surface is less susceptible to bio-fouling than traditional sand or gravel. Bacteria cannot become trapped in cracks or flaws, meaning less remedial action and reduced chemical treatment to destroy pollutants.

Extended Service Life

Unlike sand and gravel which degrade over time, EGFM maintains its effectiveness throughout its lifespan. Whilst manufacturer recommendations suggest replacement every 5 years, the media itself does not wear down like traditional alternatives — potentially lasting twice as long as conventional sand.

Energy Savings

Faster backwash cycles mean reduced pump running time, translating to lower electricity consumption. Combined with reduced heating and chemical costs from improved efficiency, EGFM delivers genuine long-term operational savings.

🎯 Real World Applications

🏊‍♂️ Residential Swimming Pools Ideal support layer for domestic pool filters, providing the foundation for effective multi-grade filtration. Compatible with standard laterals and nozzle plate systems found in home pool installations.

🏢 Commercial Swimming Pools Trusted by hotels, leisure centres, schools, and health clubs where water quality and operational efficiency are paramount. The extended lifespan reduces maintenance frequency and downtime.

🛁 Hot Tubs and Spas Perfect for spa filtration systems requiring high-flow support media. The bio-resistant properties help maintain the hygienic water quality essential for hot tub applications.

🌿 Ponds and Water Features Suitable for larger pond and water feature filtration systems where a robust, long-lasting support layer is required.

🏭 Industrial and Commercial Filtration Appropriate for various commercial water treatment applications including waste water treatment, grey water recirculation, and industrial filtration systems.

🔄 Installation Notes

🛠️ Replacing Gravel with EGFM Grade 3:

1. Preparation – Empty existing filter media completely and clean the filter tank
2. Calculate Requirements – Use 15% less EGFM by weight than the manufacturer’s gravel recommendation
3. Install Base Layer – Add Grade 3 EGFM as the support/base layer per your filter’s specifications
4. Add Upper Layers – Install Grade 1 EGFM (or Grade 2 if using a three-layer system) on top
5. Initial Backwash – Before first use, backwash the new media for 3-5 minutes to remove any fine dust
6. Rinse Cycle – Run a rinse cycle before returning to normal filtration

⚠️ Important Notes:

• Due to the larger screens used for Grade 3 processing, occasional foreign objects may be present in the media. This does not affect filtration performance and can be removed or left in place as preferred.
• For optimal results, professional installation is recommended, particularly for commercial applications.
• Always follow your filter manufacturer’s specific guidelines for media installation and quantities.

🏆 Why Choose EGFM Grade 3?

✅ Proven Performance – 30% better turbidity removal than equivalent traditional materials, backed by extensive use in residential and commercial installations

✅ Genuine Cost Savings – 50% less water used in backwashing, 15% less media required, reduced chemical consumption, and lower energy costs combine for significant operational savings

✅ Environmental Responsibility – Made from 100% recycled UK glass, supporting sustainable practices whilst delivering superior filtration performance

✅ Extended Lifespan – Non-degrading media lasts up to twice as long as traditional sand and gravel, reducing replacement frequency and maintenance costs

✅ Healthier Filtration – Bio-resistant surface prevents bacterial build-up, creating cleaner filter systems and reducing the risk of contamination

✅ Professional Specification – Used by commercial pool operators, hotels, leisure centres, and demanding residential installations where quality matters

🛒 Why Buy From Parts4Tubs?

At Parts4Tubs, we understand the importance of quality filtration for your pool, hot tub, or spa. When you buy from us, you’re buying from people who genuinely care about your water quality.

✅ Expert Knowledge – Our team has hands-on experience with pool and spa equipment, ready to help you choose the right products

✅ UK-Based Business – Family-run company based in Northamptonshire, supporting British business

✅ Fast Delivery – Efficient dispatch to get your products to you quickly

✅ Quality Products – We stock genuine, quality filtration media from trusted manufacturers

✅ Customer Support – Real people available to answer your questions and provide guidance

✅ Competitive Pricing – Great value on professional-grade pool and spa products

Delivery Note: Orders for multiple bags of glass media may be delivered via pallet service. Please ensure your delivery address can accommodate a large delivery vehicle. This is a ‘kerbside’ delivery service — please make arrangements to transport goods to your desired location if required.

✨ Summary

EGFM Glass Filter Media Grade 3 represents the professional choice for pool and spa filtration support layers. This 25kg bag of premium UK-recycled glass media delivers 30% better filtration than traditional gravel, uses 50% less water during backwashing, and provides an extended service life of up to twice that of conventional materials. As an eco-friendly alternative that doesn’t involve mining or scarce resources, EGFM Grade 3 offers the perfect combination of superior performance, cost savings, and environmental responsibility. Upgrade your filter system’s foundation today with this trusted support media.