Davey CrystalClear ER Premium Fibreglass Pool Media Filter

The Davey CrystalClear ER Series is a premium fibreglass media filter designed for in-ground and above-ground residential swimming pools. Its seamless one-piece fibreglass tank uses precision filament-wound construction for strength and durability. Inside the filter, Davey’s specially designed fish-tail laterals improve hydraulic efficiency, helping reduce the water and energy required during backwashing. The range is suitable for fresh water, salt water and mineral salt pools, with five models available from 24" through to 36". Depending on model, maximum filtration flow ranges from 226 to 509 L/min. Each model is supplied as a tank and multiport valve kit. Filter media is not included. Sand, Zelbrite or glass media must be purchased separately. Product Options Option Name: Model Model Tank Size Connection Max Flow Backwash Flow 6-Hour Turnover DCM2440 24" 40 mm 226 L/min 189 L/min 81,360 L DCM2450 24" 50 mm 226 L/min 189 L/min 81,360 L DCM2850 28" 50 mm 308 L/min 257 L/min 110,880 L DCM3250 32" 50 mm 402 L/min 335 L/min 144,720 L DCM3650 36" 50 mm 509 L/min 424 L/min 183,240 L Variant-Specific Details DCM2440 — 24" / 40 mm The DCM2440 uses the 24" CrystalClear ER tank with a 40 mm valve connection. Tank size: 24" Valve connection: Clamp type Inlet / outlet: 40 mm Maximum flow: 226 L/min Backwash flow: 189 L/min Filtration area: 0.28 m² 6-hour turnover: 81,360 L Media volume: 106 L Maximum operating pressure: 350 kPa Maximum water temperature: 50°C DCM2450 — 24" / 50 mm The DCM2450 uses the same 24" filtration platform as the DCM2440 but has 50 mm connections. Tank size: 24" Valve connection: Clamp type Inlet / outlet: 50 mm Maximum flow: 226 L/min Backwash flow: 189 L/min Filtration area: 0.28 m² 6-hour turnover: 81,360 L Media volume: 106 L Maximum operating pressure: 350 kPa Maximum water temperature: 50°C DCM2850 — 28" / 50 mm Tank size: 28" Valve connection: Bolt type Inlet / outlet: 50 mm Maximum flow: 308 L/min Backwash flow: 257 L/min Filtration area: 0.38 m² 6-hour turnover: 110,880 L Media volume: 154 L Maximum operating pressure: 250 kPa Maximum water temperature: 50°C DCM3250 — 32" / 50 mm Tank size: 32" Valve connection: Bolt type Inlet / outlet: 50 mm Maximum flow: 402 L/min Backwash flow: 335 L/min Filtration area: 0.50 m² 6-hour turnover: 144,720 L Media volume: 233 L Maximum operating pressure: 250 kPa Maximum water temperature: 50°C DCM3650 — 36" / 50 mm Tank size: 36" Valve connection: Bolt type Inlet / outlet: 50 mm Maximum flow: 509 L/min Backwash flow: 424 L/min Filtration area: 0.64 m² 6-hour turnover: 183,240 L Media volume: 322 L Maximum operating pressure: 250 kPa Maximum water temperature: 50°C Why Choose the Davey CrystalClear ER? Premium seamless one-piece fibreglass tank Precision filament-wound construction Designed for fresh, salt and mineral salt pools Specially designed fish-tail laterals Up to 30% reduction in backwash time Reduced backwash flow requirements Improved hydraulic efficiency 6-way multiport valve Integrated waste-port sight glass Liquid-filled pressure gauge UV-stabilised construction Robust barrel unions 40 mm and 50 mm models available Suitable for sand, Zelbrite and glass filter media Five sizes available to suit different pool and pump requirements How It Works Pool water is pumped through the filter and distributed through the selected filtration media. The media captures suspended debris before the filtered water returns to the pool. As debris builds up in the media bed, filter resistance increases. The multiport valve allows the system to be switched into backwash mode, reversing water flow through the media and flushing trapped material to waste. Davey’s fish-tail lateral system is designed to improve hydraulic performance during this process. The lower backwash flow requirement can reduce water use and allow more efficient pumping compared with a conventional higher-flow backwash design. The built-in sight glass lets you see the discharge water during backwashing, while the liquid-filled pressure gauge helps indicate when the filter requires cleaning. Best Suited For In-ground residential swimming pools Above-ground residential swimming pools Fresh-water pools Salt-water pools Mineral salt pools New pool filtration systems Replacement media filter installations Systems using sand, Zelbrite or glass media Installations where reduced backwash water demand is useful Key Specifications Specification DCM2440 DCM2450 DCM2850 DCM3250 DCM3650 Tank size 24" 24" 28" 32" 36" Connection 40 mm 50 mm 50 mm 50 mm 50 mm Valve type Clamp Clamp Bolt Bolt Bolt Maximum flow 226 L/min 226 L/min 308 L/min 402 L/min 509 L/min Backwash flow 189 L/min 189 L/min 257 L/min 335 L/min 424 L/min Filtration area 0.28 m² 0.28 m² 0.38 m² 0.50 m² 0.64 m² 6-hour turnover 81,360 L 81,360 L 110,880 L 144,720 L 183,240 L Media volume 106 L 106 L 154 L 233 L 322 L Maximum pressure 350 kPa 350 kPa 250 kPa 250 kPa 250 kPa Maximum water temperature 50°C 50°C 50°C 50°C 50°C Maximum flow figures are based on the residential filtration velocity of 48 m³/hr/m². Filter Media Requirements Filter media is not included with any model. The CrystalClear ER Series can be loaded with: 16/30 grade filter sand Zelbrite Glass filter media Sand Requirements Model Required Sand Approx. 20 kg Bags DCM2440 155 kg 8 DCM2450 155 kg 8 DCM2850 225 kg 12 DCM3250 340 kg 17 DCM3650 470 kg 24 Zelbrite Requirements Model Required Zelbrite Approx. 15 kg Bags DCM2440 117 kg 8 DCM2450 117 kg 8 DCM2850 169 kg 12 DCM3250 255 kg 17 DCM3650 353 kg 24 Glass Media Requirements Model Fine Glass Fine 15 kg Bags Coarse Glass Coarse 15 kg Bags DCM2440 80 kg 6 53 kg 4 DCM2450 80 kg 6 53 kg 4 DCM2850 116 kg 8 77 kg 6 DCM3250 175 kg 12 117 kg 8 DCM3650 242 kg 17 162 kg 11 Where glass media is used, the listed fine and coarse quantities are both required for the filter bed. Dimensions Davey's dimensional drawing uses reference measurements A through E. Model A B C D E DCM2440 1022 mm 879 mm 788 mm 484 mm 624 mm DCM2450 1050 mm 902 mm 804 mm 484 mm 624 mm DCM2850 1072 mm 892 mm 792 mm 620 mm 723 mm DCM3250 1157 mm 977 mm 877 mm 620 mm 810 mm DCM3650 1234 mm 1054 mm 954 mm 620 mm 910 mm Allow sufficient space around the filter for valve operation, plumbing, backwashing and future servicing. Choosing the Correct Model Filter selection should consider more than pool volume. The filter must also be matched to: Pump flow rate Plumbing size Required pool turnover Available installation space Required backwash flow Maximum system pressure The DCM2440 and DCM2450 use the same 24" filter size and filtration capacity. The key difference is connection size: DCM2440: 40 mm DCM2450: 50 mm The larger 28", 32" and 36" models provide progressively greater filtration area and flow capacity. Installation Install the CrystalClear ER on a firm, level base with sufficient access for the multiport valve and future servicing. Connection size depends on model: DCM2440: 40 mm DCM2450: 50 mm DCM2850: 50 mm DCM3250: 50 mm DCM3650: 50 mm The pool pump and plumbing system should be matched to the selected filter's operating flow and pressure limits. Filter media must be added separately during installation. It is not supplied with the filter. Maintenance Monitor the pressure gauge during normal operation. As dirt accumulates within the media bed, pressure and resistance through the filter increase. Backwash the filter when required using the 6-way multiport valve. The integrated waste sight glass allows the discharge water to be monitored during the backwash cycle. Follow the correct backwash and rinse sequence before returning the valve to normal filtration. Filter media should also be inspected and replaced when its condition or filtration performance requires it. What's Included 1 × Davey CrystalClear ER fibreglass filter tank 1 × Multiport valve kit The multiport valve system incorporates the filter-control features including the sight glass and liquid-filled pressure gauge. Not Included Filter media is not included. Sand, Zelbrite or glass media must be ordered separately in the quantity required for the selected model. Warranty Tank: 10 years Multiport valve: 3 years Gauge, laterals and labour: 1 year FAQs Does the Davey CrystalClear ER come with filter media? No. Filter media is not included. Sand, Zelbrite or glass media must be purchased separately. What is included with the filter? The selected CrystalClear ER filter tank and multiport valve kit are supplied. Can I use glass media? Yes. The ER Series is suitable for glass filtration media. Both fine and coarse glass quantities are specified for each model. Can I use Zelbrite? Yes. Zelbrite is a suitable media option. Can I use ordinary pool filter sand? The specified sand type is 16/30 grade filter sand. Can the filter be used on salt-water pools? Yes. It is suitable for fresh-water, salt-water and mineral salt pools. What is the difference between DCM2440 and DCM2450? Both use a 24" tank and have the same flow and filtration capacity. DCM2440 has 40 mm connections, while DCM2450 has 50 mm connections. Which model has the highest flow rate? The DCM3650 is the largest model, with a maximum flow rating of 509 L/min. What does the sight glass do? It lets you see the water being discharged during backwashing, making it easier to monitor the cleaning cycle. What does the pressure gauge do? The pressure gauge helps monitor resistance through the filter and indicates when backwashing may be required.