This is a set of three nesting plastic bowls, each 6.75” diameter and 2.5” deep, with a lid. One bowl has a solid bottom, one has a coarse screen bottom (openings approx. 3.8 mm. square) and the other has a fine screen bottom (will stop 1st instars). The coarse screen sieve is useful for separating debris from larvae, and the fine screen is useful for concentrating larvae, I.e., removing excess water.
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