Efficiently connect your Aquascape EcoWave pumps to the Dual Union Check Valve 2.0 (#48026) with the Check Valve Adapter for Ecowave Pump (2″). This reliable adapter helps prevent backflow and ensures a secure and simple pump and plumbing connection for Pondless® Waterfall Vaults and pond skimmers. It can easily attach to the EcoWave pumps' 2" MPT outlet through its 2" FPT connection, and also offers a 2" slip connection if necessary. Note: Compatible with EcoWave Pump models 2000-5000. A must-have for Pondless® Waterfall Vaults and pond skimmers. The Check Valve Adapter for Ecowave Pump (2″) safely connects your Aquascape EcoWave pumps to the Dual Union Check Valve 2.0 (#48026), preventing backflow and providing a secure and simple pump and plumbing connection. With its 2" MPT and FPT connections, as well as a 2" slip connection, this adapter is versatile and compatible with EcoWave Pump models 2000-5000.