For unsurpassed water clarity, choose Jandy® Pro Series DEV Diatomaceous Earth filters. Made of tiny fossil exoskeletons, diatomaceous earth is a safe, eco-friendly and natural water polisher. The Jandy DEV filter traps debris as small as 5 microns, returning highly filtered water to your pool. DEV filters have a curved grid design that creates balanced water flow throughout the filter tank and are constructed with a heavy-duty, durable composite body made of corrosion- and UV-resistant materials.

DEV filters have a curved grid design that creates balanced water flow throughout the filter tank, and are constructed with a heavy-duty, durable composite body made of corrosion- and UV-resistant materials. Uses optional Jandy unions, or select a Jandy backwash valve kit option: 2-in-1 Never Lube® Valve, Slide Valve, or the Multi-Port Valve.

Diatomaceous earth is a natural, eco-friendly water polisher. Made of tiny fossil exoskeletons, diatomaceous earth is a safe and natural water polisher. The DEV filter traps debris as small as 5 microns, returning highly filtered water to your pool. DEV filters have a curved grid design that creates balanced water flow throughout the filter tank, and are constructed with a heavy-duty, durable composite body made of corrosion- and UV-resistant materials.