Photo By/Credit
Patterson, Matthew/USFWS
Date Shot/Created
01/29/2015Media Usage Rights/License
Public Domain
Image
Each nested sieve is constructed using a PVC male adapter with 150 or 300 micron mesh screening glued to the bottom with PVC glue. The reduced diameter of the threaded portion of the male adapter allows the sieves to nest. Photo: Matthew Patterson, USFWS.