The present invention relates to a water filtration device for use in a closed recirculation culture system that is efficient for remove particulate from water and prevent clogging of a filter. The device mainly comprises a filter body, a central…

Often during the process of rolling a cable, the cable becomes entangled, making it difficult to roll the cable. In addition, the cable also tends to accumulate in one place on the cable roll (cable overrun), which makes it difficult to unroll the…