The AG STAYPOOLLIZER 2.0 is designed for above-ground pools.

Above ground swimming pools have a wall with a top rail or ledge instead of a typical pool deck. The unique design of the AG STAYPOOLLIZER allows it to properly sit on top of the wall so it can be mounted in place with the included mounting hardware

• Patent Nxgen Flow Control technology - NO WATER REGULATOR REQUIRED - Senses Low Water Levels Correcting Automatically 24 Hours A Day 7 Days A Week

• Continuously maintains the water level of your swimming pool within a 1/4 inch year round.

• Easily make adjustments to your pools water level of approximately 4 to 9 inches by sliding the float assembly up or down. Measure from top of pool deck to center of skimmer opening.
  
• Attaches to a standard garden hose.
• No assembly required.