Compare Quick view Hayward HAYWARD | PRO GRID FILTER DE 36 SQFT NO VALVE | DE3620 MSRP: Was: Now: $828.89 HAYWARD | PRO GRID FILTER DE 36 SQFT NO VALVE | DE3620 Pro-Grid™ Vertical Grid ITEM # PROGRIDVG Description Diatomaceous earth is a porous powder with microscopic openingsthat when magnified look like tiny...
