Powered by siphon action. Drains 10-12 gallons per minute. Vacuums debris as it drains. Dimensions: 2 diam. x 52L inches. The Backyard Innovations Quick Drain Spa Drain removes spa water as it vacuums -- with no moving parts! Dip the clear wand end of the drain into your spa, shake it, and the water comes pouring out through the discharge hose. The drain is powered by simple siphon action and will drain 10 to 12 gallons per minute from your spa. In fact, it will completely drain a 400-gallon spa in just 30... This product ships in approximately 1 days