高性能立式深层过滤砂缸是使用强化的聚酯和玻璃纤维缠绕而成，并具有
良好的耐化学腐蚀性能以及防晒和防紫外线性能。它的其中一个主要特征
是过滤层的高度。泥尘通过沙床被过滤掉，并卡在沙粒之间的微细间隙中。
开始时，干净的沙床可除去较大的粒子，随着沙床的不断负荷，它便可除
去较细的粒子。过滤层越高，性能越好。

Hingh performance vertical bobbin wound filters are manufactured by using
reinforced polyester with fiber glass, which is completely anti-corrosive, with
high mechanical, chemical and thermal resistance. One of its main characteristics
is the height of its filtering layer. Dirt is driven through out the sand bed and
trapped in minute spaces between the particles of sand.Initially, a clean bed will
remove larger particles and then as the sand bed starts to load up, it will remove
thinner particles. The higher it is, the better it performances.