Easy no construction set up Heavy-duty PVC and polyester 3-ply side walls Liner is supported by an inflatable top ring Flow control drain valve for easy draining Compatible with Filter Type V cartridges (Bestway Item 58168) Water capacity (80 percent): 608 gallons (2,300 L) The Fast Set Inflatable Pool is constructed of tough TritechTM material, making it extremely durable and guarantees to keep the family swimming for years to come! It sets up in minutes, as only the top ring needs inflated. The body of the pool has a liner that lifts when you fill the pool with water and the you'll be all set for some fun!