Gravity-Fed Filtration, Two Filters Deep

This 2-pack of Delta Emergency Water Filters uses nanofiber filtration to strip bacteria, viruses, parasites, heavy metals, pharmaceuticals, and industrial chemicals out of most fresh water sources. Snap the funnel pieces together, let gravity pull the water through, and it's ready to drink — no pump, no batteries.

Each filter is rated to 75 liters, meets NSF Standards 42, 53, 401, and P231, and weighs under 4 ounces. Activated carbon improves taste along the way, and the biodegradable construction has no expiration date sitting in storage — keep one in a pack and one in an emergency kit.

Best for

• Backcountry trips and emergency kits alike
• A no-pump, gravity-fed filtering option
• Long-term storage without worrying about shelf life
• Anyone who wants a backup filter beyond their primary one