Pentair FNS Plus 36 SqFt DE Filter (No Valve)

The Pentair FNS Plus 36 (model EC‑180007) is a vertical-grid diatomaceous earth (DE) filter built for residential in‑ground pools. It features a rugged, chemical‑resistant tank made from fiberglass‑reinforced polypropylene for long-term reliability. The filter does not include a valve so you can choose your preferred top-mount or side-mount multiport or slide valve.

Key Features

• Curved vertical grids (Service‑Ease™ design) maximize filtration area.

• High‑Flow™ manual air relief valve + continuous internal air relief to manage trapped air.

• 1½″ bottom clean-out / drain port for full water and sand removal.

• Durable tank: fiberglass‑reinforced polypropylene for strength and chemical resistance.

• Easy-to-remove grid pack for convenient servicing.

• Plumbing connections: 2″ ports that support high flow.

• NSF/ANSI 50 certified.

Benefits

• Efficient filtration: Curved grids give more surface area, meaning better dirt capture and longer times between cleanings.

• Customizable setup: Since the valve isn’t included, you can pick a valve that matches your plumbing and system.

• Long-lasting: The strong tank material stands up to harsh chemical environments.

• Easy maintenance: Simple grid removal helps you clean or replace parts without much hassle.

• Complete drainage: The bottom drain helps for winterizing or deep cleaning.