DESC: Pump-to-filter union connection provides simple installation and winterization Corrosion-proof, modular platform base accepts optional chlorine feeder EC301540ESNV includes: EC30 Filter; SP1540, 40 GPM Power-Flo pump; modular platform base; union connection; 1 1/2-inch hose package Optional Microprocessor Pump Timer Feature Available 1 1/2-inch hose packages include: two (2) 1 1/2-inch x 6-foot lengths of hose adapters and hose clamps, Manufacturer: Hayward