Designed to be used in submersed return applications, with your Vectra Return Pump, the EcoTech Vectra Barb and Screen Kit allows you to use alternatives when hard plumbing is not available. The screen fitting keeps debris and livestock from entering your pump intake, which increases the life of your pump, and it slides easily into the output of your pump as well. Blockages can cause damage and wear and tear to your pump, but the screen fitting keeps all unwanted detritus out. The screen fits perfectly into the inlet of the pump, no adhesive necessary. Intake Barb Size: 1.25". Output Barb Size: 1". Includes: 1 Intake Barb Fitting and 1 Output Barb Fitting.