Excellent 17,000+ Reviews

Outlast Family Gravity Filter (OP-GF1)

A body lasts weeks without food and about three days without water. The tap does not know that.

A hanging reservoir bag, a 0.1-micron hollow-fiber core, and a carbon stage, run entirely by gravity. Fill it from any creek, pond, or rain barrel and clean water runs out the hose. Enough for a household, for months.

  • Runs on gravity, no power or pumping
  • Blocks bacteria and parasites at 0.1 micron
  • Up to 1,400 gallons per filter
  • No shelf life when stored dry
  • Independent lab results on file
  • Under a pound, packs flat
$149.99 $198.00 SAVE 24%
Low stock: fewer than 50 units left at this price. Next restock: October 14

Limited Time | Each Purchase Includes:

The Home Readiness Guide (ebook)

Plain-language checklists for the first 72 hours of any outage.

$30FREE

Water Storage and Sourcing Workbook

How much you need, where to find it, how to make it safe.

$20FREE

16 Emergency Prep Checklists

One page each. Print them, tape them inside a cabinet door.

$20FREE
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Lifetime Warranty
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"Set it up in the backyard with creek water to see if it was real. Clear in twenty minutes and nobody got sick. That was the whole test I needed."

Dorothy H.

Product description

The One Piece of Gear That Matters Most, and Most Homes Skip

Food, flashlights, a radio. People stock all of it and forget the one thing they will run out of first. Water. And when the store shelves empty, there is no substitute for having your own way to make it.

The Outlast Family Gravity Filter is that way. Hang the bag, let gravity work, and drink. No parts to charge, no pump to break, no straw to share.

The system prepared families trust

Creek Water Goes In the Top. Drinking Water Comes Out the Hose.

Every drop passes five stages on the way down. Each one has a job.

From top to bottom:

  1. 1
    Coarse Screen.Keeps twigs, leaves, and the big grit out of the works.
  2. 2
    Sediment Pad.Catches the fine silt and rust that turn water brown.
  3. 3
    Hollow-Fiber Core.Thousands of hair-thin tubes with 0.1-micron walls. Water gets through. Bacteria and parasites do not.
  4. 4
    Carbon Stage.Activated carbon pulls out chlorine, pond taste, and most odors.
  5. 5
    Outlet Mesh.A final screen so what fills your glass is clear.

Muddy in. Clear out. Every gallon.

Get the Family Filter
1,400-gallon core No expiration dry Veteran owned Backed by 17,000+ reviews

Real customers

Families Who Tested It Before They Needed It

★★★★★

"Set it up in the backyard with creek water to see if it was real. Clear in twenty minutes, tasted like nothing, and nobody in the house got sick. That was the whole test I needed."

D
Dorothy H.Verified Buyer
★★★★★

"We lost water for six days after the ice storm. Neighbors were driving forty minutes for bottled. We were filling jugs off the porch rail."

F
Frank M.Verified Buyer
★★★★★

"My daughter made me buy it. I thought it was silly. It hangs in the pantry now and I honestly sleep better knowing it is there."

J
June A.Verified Buyer

Everything you need to know

Frequently Asked Questions

How does it work with no power?

Gravity. Fill the top reservoir, hang it, and the weight of the water pushes it down through the filter and out the hose. There is nothing to plug in, pump, or charge.

What does it take out?

The hollow-fiber core blocks bacteria, protozoa like giardia and cryptosporidium, sediment, and microplastics. The carbon stage takes out chlorine taste and most odors.

What does it not take out?

Viruses and dissolved chemicals such as lead. No hollow-fiber filter does, whatever the box says. For floodwater or anything near sewage, add a PureTab. We would rather tell you now than have you find out later.

How much water can one filter handle?

Up to 1,400 gallons across its life, depending on how dirty the source is. Backflush it with the included syringe when the flow slows and it keeps going.

Can it freeze?

A dry, unused filter can be stored anywhere. Once it has been wet, keep it above freezing. Ice inside the fibers will crack them.

What about shipping, returns, and warranty?

Free US shipping, 1 to 3 day processing. 90-day money-back guarantee, even if you have used it. Lifetime warranty against defects in the bag, hose, and housing.

Built for American Families. Backed by Veterans.

Own Your Water Supply

  • Runs on gravity, no power, no pumping
  • Blocks bacteria and parasites down to 0.1 micron
  • Up to 1,400 gallons per filter
  • No shelf life when stored dry
  • Fills a gallon jug hands-free
  • USA Veteran Owned and Operated
GET THE FAMILY FILTER

90-Day Money-Back Guarantee. Free Shipping. Lifetime Warranty.