The Justrite Sump-to-Sump™ Drain Kit for EcoPolyBlend™ Accumulation Centers (model 28927) includes stainless steel clips, grommets, and a transfer tube. Ideal for applications that require a continuous sump, it allows you to increase sump capacity by joining together 4-drum and smaller accumulation centers.Measuring 4 in W x 2 in D (102 mm W x 51 mm D) with a net weight of only 1 lb (0.5 kg), the Sump-to-Sump drain kit helps create a scalable, modular network of accumulation centers that can in