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Feature:1. Inner tanks are made of high density polyethylene material, corrosive-proof, safe and environmental.2. Outer is constructed of polyester resin and non-corrosive fibreglass filament winding.3. Integral sight glass for backwash clarity confirmation.4. Clamp lock designed to allow 360degree rotation to simplify installation.5. Removable thread socket PVC unions in imperial or metric size.Specifications:1. Maximum working pressure: 200kpa/29psi/2.0bar.2. Factory Testing Pressure: 300kpa/44psi/3.0bar.3. Maximum Water Temperature: 40°C(104F)4. Size of Gravel: 1mm-2mm5. Size of Silica Sand: 0.5~0.8mmApplication:*swimming pool and spa*aguiculture*industrial water treatment.Model: EPW/ESW SERIES

- Inner tanks are made of high density polyethylene material, corrosive-proof, safe and environmental. - Outer is constructed of polyester resin and non-corrosive fibreglass winding for its heavy duty performance and reliablility. - Sight glass for backwash clarity inspection. - Clamp lock designed to allow 360° rotation to simplify installation. - Removable threaded PVC unions both in imperial and metric size

Feature:1. UV inhibited filament wound structural fiberglass tanks.2. Manual safety pressure release.3. Large combination sand/water drain for easy winterizing.4. Sight glass for inspection of filtered water.5. KP series filter: Bolt style top mount valve combines with the filter perfectly.Model: KP SERIES

- The tanks are made of high density polyethylene material, corrosive-proof,safe and environmental. - Sight glass for backwash inspection. - Clamp lock designed to allow 360° rotation to simplify installation. - Removable threaded PVC unions both in imperial and metric sizeModel: ES sereis

Moscow Zoo (Московский зоопарк, Moscow Zoo) is the first zoo in Russia, More than 1,000 kinds of animals lived in the zoo, The zoo is one of the member of the World and European Association of Zoos and Aquariums, The Bipolar hall exhibited polar bears and penguins. POOLKING provided horizontal sand filter and commercial sand filter for the park. Bring suitable pool water for animals.

Marine culture is a major feature of the hotel. The ambassador lagoon with 13500 tons of natural seawater has more than 280 kinds of fresh water and marine animals[ 4] The hotel has a "lost space" aquarium. Tourists can watch more than 280 species of creatures such as sharks, rays, jellyfish, upside down fish, sea eels and giant bone tongue fish. They can also dance with exotic marine creatures in diving projects. In addition, the hotel has also created a water world, covering an area of 200000 square meters. It is a water park open all year round, with dozens of top slides, speed rafting, water fun park for children, etc. The hotel has 21 global gourmet restaurants, covering international cuisines such as European self-service, Chinese self-service and Japanese cuisine. Tourists can feel the world food culture in Hainan

Zhuhai Chimelong ocean kingdom is the largest marine theme park in the world. It strives to build a leisure park with the theme of marine animals, which is the world's top, largest, richest amusement facilities and most imaginative. The unique design of the world's first precious animal exhibition area combined with large amusement facilities, and the comprehensive integration of rare polar and marine animals, top amusement equipment, float parade, fireworks show "marine defense" and other wonderful large-scale performances, has attracted tourists of different ages at home and abroad and become a new model of global theme parks[ 5] Chimelong ocean Kingdom has many of the largest ocean theme parks in the world or industries, that is, the world's largest ocean theme park; The world's first unique design of the combination of large amusement facilities and precious animal exhibition area; The first flying roller coaster in Asia, with the longest track in the world; The first water roller coaster in Asia; The world's largest aquarium and acrylic glass; The world's largest parade lineup of ocean themed floats[ 6] Zhuhai Changlong International Ocean ResortZhuhai Chimelong International Ocean Resort (8 pieces)Chimelong ocean Kingdom aquarium also won five Guinness World Records. There are up to 15000 rare fish of different varieties in the aquarium, which is a vivid epitome of the world leading strength of the whole Zhuhai Chimelong International Ocean Resort.

Singapore Zoo is covering an area of 28.3 hectares. Natural scene in the park instead of fences, creating a natural living environment for all kinds of animals. There are about 3000 animals running free and living peacefully with tourists. It has been installed more than 40 nos POOLKING's stacking horizontal sand filters in Sea Lion ,Manatee ， Penguin hall . POOLING is the first manufacturer in China to produce stacked horizontal sand filter.