50微米孔径 30cm x 90cm 轻便浮游生物网 适用于水质监测与海洋研究

Each net comes complete with heavy-duty Nitex nylon net, a stainless steel ring and bridle, and PVC cod end assembly. The high efficiency cod end is a two-piece design with stainless steel fasteners. The lower collection cup is lined with Nitex mesh where the entire sample is concentrated and easily removed. Made in the U.S.A.