The CMP 2" Insider Wall Fitting (25524-200-000) is a white PVC fitting for pool professionals to install return lines in gunite pools. Featuring a 1.5" female pipe thread inlet and 2" insider outlet, this 3.5" face-diameter component ensures secure water flow. Durable and corrosion-resistant, it s designed for concrete pool construction.Compatible with 1.5" schedule 40 PVC piping and CMP insider eyeball fittings, per CMP specs.1.5" FIP inlet, 2" insider outlet, 3.5" face diameter, white PVC, per documentation.Installs in gunite walls with threading and sealing compound, per CMP guidelines.Provides reliable water return, enhancing circulation and pool longevity.