Hayward Pro-Grid D.E. Filter 36 Sq. Ft. | W3DE3620 Air Supply of the Future Air Blowers The 2-Hole Pop-Ups have a

The 2-Hole Pop-Ups have a 3/8" and 1/4" orifice to provide a steady flow of water and maintain chemical balance

Do not prime the body itself (only internal pipe)

Low Flow pop-ups are meant for steps & benches

The feed hose assembly complete - w/ UWF (NO backup valve

Hayward Pro-Grid D.E. Filter 36 Sq. Ft. | W3DE3620 Air Supply of the Future Air Blowers The 2-Hole Pop-Ups have aPro Grid vertical grid D. E. filters provide superior water clarity, efficient flow, and large cleaning capacity for pools and spas of all types and sizes. Pro Grid combines high tech features and a service ease design for unparalleled filtration. Features: Filter tanks are made from the most durable materials to meet the demands of the toughest applications and environmental conditions High capacity, rapid release manual air relief valve bleeds air