INTERMEDIATE BULK STORAGE ABS offers a wide range of flexible options, both square and round, to meet a variety of Intermediate Bulk Storage needs. Take-off Boxes, Probes, and Slide Gates complete the line. FIND A REP SQUARE BIN Square Bins are used for the storage of resin or regrind material. A 4″ round sight glass midway through the pyramid makes it easy to see material level. Square Bins come in a variety of sizes and can be constructed out of Stainless or Carbon Steel. ROUND BINS Round Bins are perfect for resins with higher bulk density. Compact and strong, they feature Stainless Steel construction.