80u 30cm x 90cm 精细浮游生物网 高效过滤 轻便耐用 适用于水质监测与生态研究

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.