Generic Air Relief Valve O-Ring for Various Pool Filters material_PVC/FRP The Dolphin System has three

The Dolphin System has three modes of operation: Semi-Automatic Timing (Synchronized Start/Manual Stop)

The 1-1/2 inch spouts are 2 inches from end of spout (mouth) to beginning of curve

Both game bases can be filled with water or sand for poolside stability

This is a 2 ounce bottle of LaMotte pH Indicator reagent

This is a black replacement weir gate for Bermuda gunite and vinyl liner skimmers

Generic Air Relief Valve O-Ring for Various Pool Filters material_PVC/FRP The Dolphin System has threeThis is a Generic Air Relief Valve O Ring O 155 replacement with dimensions for various manufacturers' pool filters. The dimensions will fit Hayward ReGenX RG450RG700, ECX1321A, SPX1082Z410, Astral 722R1000025, Jacuzzi 47011002R, Pentair American 467130, 57006500, Pentair Pacfab 273060, Pentair Purex P24200, 071436 Sta Rite U9221, Swimquip 355051152, and Waterway 8050110 items.