Poolking, your best swimming pool equipment manufacturer and supplier with more than 20 years experience. 
Email: sandy@poolking.co 
+8613922334815
1. Maximum working pressure: 250kPa/36psi/2.5bar or 400kPa/58psi/4.0bar
2. Factory Testing Pressure: 400kPa/58psi/4.0bar or 600kPa/86psi/6.0bar
3. Maximum Water Temperature: 500 C
4. Size of Gravel: 1mm-2mm
5. Size of Silica Sand: 0.5~0.8mm
Poolking has developed to be a professional manufacturer and reliable supplier of high-quality products. Throughout the whole production process, we strictly implement the ISO quality management system control. Since established, we always adhere to independent innovation, scientific management, and continuous improvement, and provide high-quality services to meet and even exceed customers' requirements. We guarantee our new product best protein skimmer for 300 gallon tank will bring you a lot of benefits. We are always standby to receive your inquiry. best protein skimmer for 300 gallon tank We have been investing a lot in the product R&D, which turns out to be effective that we have developed best protein skimmer for 300 gallon tank. 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.The surface treatment of Poolking mainly includes degreasing, anodizing, sandblasting, painting, and laser engraving. It has to go through surface inspection to guarantee burr free.
Poolking offer high efficiency after-sales service to client. It takes 1 day to solve when any problem occurs.
POOLKING owns modern automatic production facility to produce over 3000 units sand filter per month
Poolking has over 60000 square meter factory base. It is the only one largest factory to produce fiberglass filtration equipment in China .We serve our customers with the tenet of "quality first, unity and pragmatism, innovation and high efficiency". product.
What is the warranty for the products?
Filters are two years, the other products are one year.
Who can join
Dealers (Builders , wholesaler , trading company ) in the swimming pool industry .
When do I need to replace the sand?
On average, sand should be replaced every 3-5 years. This may be longer if the pool stays clear, or shorter, if the filter runs all the time. The jagged edges of the sand wear down and become smooth as the sand ages. When this happens the sand can no longer trap debris particles and dirt can pass through the sand and back into the pool.
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!
