Poolking, your best swimming pool equipment manufacturer and supplier with more than 20 years experience. 
Email: sandy@poolking.co
Poolking | Latest undergravel filter company
Guided by scientific and technological innovation, Poolking always keeps outward-oriented and sticks to the positive development on the basis of technological innovation. undergravel filter We have been investing a lot in the product R&D, which turns out to be effective that we have developed undergravel filter. Relying on our innovative and hard-working staff, we guarantee that we offer customers the best products, the most favorable prices, and the most comprehensive services as well. Welcome to contact us if you have any questions.It has the advantage of corrosion resistance. The product can work stably in harsh conditions such as acid-base and mechanical oil environment.
Model: K
- Lateral and nozzle plate are available in option.
- Sight glass and Manhole are available in option.
- Lateral configuration enhances filtration performance.
- Fiberglass filter body is UV and corrosion resistant.
- Air Release Valve and air tube enable easy release of air during operation and testing.
- Nozzle plate system ensures the same flow for filtration and backwash ,ensuring the media bed to reach maximum performance and save up to 25% water during backwash.
| Model | Filter Diameter（mm） | Filter Height （mm） | Flow rate（mm³/h/m²） | Inlet&Outlet De(mm)/inch | Design Flow（m³/h） | Filter Area（m²） | Sand Weight（kg）0.5-0.8mm | Grave Weight（kg）1-2mm |
| K1200 | 1200 | 1420 | 30 | 90/3" | 34 | 1.13 | 750 | 300 |
| 40 | 90/3" | 45 | ||||||
| 50 | 110/4" | 57 | ||||||
| K1400 | 1400 | 1670 | 30 | 90/3" | 46 | 1.54 | 1200 | 500 |
| 40 | 110/4" | 61 | ||||||
| 50 | 110/4" | 77 | ||||||
| K1600 | 1600 | 1750 | 30 | 110/4" | 60 | 2.01 | 1850 | 30750 |
| 40 | 160/6" | 80 | ||||||
| 50 | 160/6" | 101 | ||||||
| K1800 | 1800 | 1950 | 30 | 110/4" | 76 | 2.54 | 2500 | 1050 |
| 40 | 160/6" | 101 | ||||||
| 50 | 160/6" | 127 | ||||||
| K2000 | 2000 | 2130 | 30 | 160/6" | 94 | 3.14 | 3300 | 1150 |
| 40 | 160/6" | 125 | ||||||
| 50 | 160/6" | 157 | ||||||
| K2200 | 2200 | 2350 | 30 | 160/6" | 114 | 3.80 | 4150 | 4170 |
| 40 | 160/6" | 152 | ||||||
| 50 | 200/8" | 190 | ||||||
| K2300 | 2300 | 2350 | 30 | 160/6" | 125 | 4.15 | 4900 | 1600 |
| 40 | 200/8" | 166 | ||||||
| 50 | 200/8" | 208 | ||||||
| K2350 | 2350 | 2350 | 30 | 160/6" | 130 | 4.34 | 5000 | 1800 |
| 40 | 200/8" | 175 | ||||||
| 50 | 200/8" | 217 | ||||||
| K2500 | 2500 | 2450 | 30 | 160/6" | 147 | 4.90 | 6000 | 2200 |
| 40 | 200/8" | 196 | ||||||
| 50 | 200/8" | 245 | ||||||
| K3000 | 3000 | 2650 | 30 | 200/8" | 212 | 7.07 | 8600 | 3300 |
| 40 | 200/8" | 282 | ||||||
| 50 | 250/10" | 354 |
Model | Filter Diameter（mm） | Filter Height （mm） | Flow rate（mm³/h/m²） | Inlet&Outlet De(mm)/inch | Design Flow（m³/h） | Filter Area（m²） | Sand Weight（kg）0.5-0.8mm | Grave Weight（kg）1-2mm |
| K1400N | 1420 | 1900 | 30 | 90/3" | 46 | 1.54 | 1800 | 220 |
| 40 | 110/4" | 61 | ||||||
| 50 | 110/4" | 77 | ||||||
| K1600N | 1620 | 2000 | 30 | 110/4" | 60 | 2.01 | 2300 | 300 |
| 40 | 160/6" | 80 | ||||||
| 50 | 160/6" | 101 | ||||||
| K1800N | 1830 | 2100 | 30 | 110/4" | 76 | 2.54 | 2900 | 360 |
| 40 | 160/6" | 101 | ||||||
| 50 | 160/6" | 127 | ||||||
| K2000N | 2030 | 2200 | 30 | 160/6" | 94 | 3.14 | 3600 | 440 |
| 40 | 160/6" | 125 | ||||||
| 50 | 160/6" | 157 | ||||||
| K2300N | 2300 | 2350 | 30 | 160/6" | 125 | 4.15 | 4800 | 580 |
| 40 | 200/8" | 166 | ||||||
| 50 | 200/8" | 205 | ||||||
| K2500N | 2500 | 2450 | 30 | 160/6" | 147 | 4.90 | 5700 | 680 |
| 40 | 200/8" | 196 | ||||||
| 50 | 200/8" | 245 | ||||||
| K3000 | 3000 | 2650 | 30 | 200/8" | 212 | 7.07 | 8250 | 980 |
| 40 | 200/8" | 282 | ||||||
| 50 | 250/10" | 354 |
| Model | ΦD（mm） | H（mm） | A（mm） | B（mm） | C（mm） | E（mm） | F（mm） | K（mm） | M（mm） | N（mm） | ΦP（mm） | T（mm） | W（mm） |
| K1200 | 1200 | 1422 | 560 | 180 | 340 | 60 | 740 | 180*180 | 1150 | 80 | 1010 | 600 | 300 |
| K1400 | 1400 | 1670 | 650 | 190 | 350 | 60 | 800 | 300*400 | 1250 | 80 | 1240 | 700 | 300 |
| K1600 | 1600 | 1750 | 680 | 215 | 450 | 60 | 870 | 300*400 | 1450 | 80 | 1450 | 800 | 320 |
| K1800 | 1800 | 1950 | 730 | 215 | 550 | 60 | 91 | 300*400 | 1650 | 80 | 1610 | 850 | 320 |
| K2000 | 2000 | 2130 | 800 | 240 | 550 | 60 | 1050 | 300*400 | 1700 | 80 | 1800 | 900 | 350 |
| K2200 | 2200 | 2350 | 900 | 240 | 600 | 60 | 1070 | 300*400 | 1750 | 80 | 1800 | 1000 | 400 |
| K2300 | 2300 | 2350 | 940 | 240 | 600 | 60 | 1070 | 300*400 | 1800 | 80 | 2010 | 1000 | 400 |
| K2350 | 2350 | 2350 | 940 | 240 | 600 | 60 | 1070 | 300*400 | 1800 | 80 | 2010 | 1000 | 400 |
| K2500 | 2500 | 2450 | 960 | 240 | 600 | 60 | 1100 | 300*400 | 1900 | 80 | 2010 | 1050 | 400 |
| K3000 | 3000 | 2650 | 1020 | 350 | 600 | 60 | 1130 | 300*400 | 2150 | 80 | 2650 | 1100 | 450 |
| Model | ΦD（mm） | H（mm） | A（mm） | B（mm） | C（mm） | E（mm） | F（mm） | K（mm） | M（mm） | N（mm） | ΦP（mm） | T（mm） | W（mm） |
| K1400N | 1420 | 1900 | 700 | 190 | 550 | 40 | 800 | 300*400 | 1400 | 80 | 1240 | 1000 | 300 |
| K1600N | 1620 | 2000 | 810 | 215 | 550 | 40 | 870 | 300*400 | 1500 | 80 | 1450 | 1000 | 320 |
| K1800N | 1830 | 2100 | 850 | 215 | 550 | 40 | 980 | 300*400 | 1600 | 80 | 1610 | 1000 | 320 |
| K2000N | 2030 | 2200 | 900 | 240 | 550 | 40 | 1030 | 300*400 | 1650 | 80 | 1800 | 1000 | 350 |
| K2300N | 2300 | 2350 | 940 | 240 | 600 | 40 | 1070 | 300*400 | 1800 | 80 | 2010 | 1000 | 400 |
| K2500N | 2500 | 2400 | 960 | 240 | 600 | 40 | 1100 | 300*400 | 1900 | 80 | 2010 | 1000 | 400 |
| K3000N | 3000 | 2650 | 1020 | 350 | 600 | 40 | 1130 | 300*400 | 2150 | 80 | 2650 | 1000 | 400 |
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Best swimming pool equipment manufacturer - Poolkin will continue for innovative management and excellent quality. Imagination will subvert the future, intelligent manufacturing will lead the era, that's the motto of Poolking!
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Contact: Sandy
Email: sandy@poolking.co
Sales Hot line: +86-20-34982303
WhatsApp:+86-13922334815
Add: No. 80, Danan North Road, Dagang Village, Dagang Town, Nansha District, Guangzhou City (temporary business premises)