Seychelle 28oz Extreme/Rad/Advanced Flip Top Water Filter Bottle

Seychelle 28oz Extreme/Rad/Advanced Flip Top Water Filter Bottle
Seychelle 28oz Extreme/Rad/Advanced Flip Top Water Filter Bottle
Seychelle 28oz Extreme/Rad/Advanced Flip Top Water Filter Bottle
Seychelle 28oz Extreme/Rad/Advanced Flip Top Water Filter Bottle

Seychelle 28oz Extreme/Rad/Advanced Flip Top Water Filter Bottle


The Seychelle 28oz Extreme/Rad/Advanced Flip Top Water Filter Bottle produces up to 100 gallons of great-tasting water; Designed to remove: Gross Beta, Alpha Radium 226, Radioactive Iodine 131, Cesium 137, Uranium, Radium, Radon 222, Plutonium.\

Key Features:

  • Produces up to 150 gallons of filtered water or more depending upon the quality of the source water
  • Removes up to 99.99% of chlorine, chemicals, and heavy metals.
  • Reduces up to 90% of fluoride
  • Has a screw-on/off fill from the top cap for easy filling
  • 28 oz size is compact, lightweight, and easy to use
  • Seychelle's exclusive filters are the most laboratory and field-tested of their kind in the world. Tested to EPA protocols and NSF/ANSI standards 42 and 53 by Broward Testing Laboratories
  • Environmentally safe! Does not pollute the countryside
  • Reusable - made of FDA-approved low-density polyethylene #4 plastic - Will not leach
  • BPA free


Seychelle Extreme/RAD/ADVANCED Filters are tested to remove up to 99.99% of the following zones of contamination:

Aesthetic contaminants: Unpleasant taste, odors, cloudiness, silt and chlorine

Chemical contaminants: VOC’s, toxic chemicals, trihalomethanes, PFOA, PFOS, PCB’s, glyphosate, herbicides, detergents, pesticides (DDT), benzene, atrazine and many more

Inorganic contaminants: Heavy metals, aluminum, asbestos, cadmium, chromium 6, copper, arsenic, nitrates & nitrites, lead, mercury and up to 90% fluoride

Radiological contaminants:Gross alpha, gross beta, and radon-222


Test Results

The current processing time for orders is 1 to 5 business days

Free shipping on orders over $69.99 and $6.99 flat rate shipping for orders under $69.99  in Mainland 48 States only.  For all others please contact for shipping quote.

Questions & Answers

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  • Can I fill the bottle directly from our lake and drink it

    Yes, you can as it does filter out bacteria and viruses.

  • Can you get a one like this... SEYCHELLE 28OZ EXTREME/RAD/ADVANCED FLIP TOP WATER FILTER That is stainless steel? Can you use a filter from SEYCHELLE 28OZ EXTREME/RAD/ADVANCED FLIP TOP WATER FILTER in a stainless steel one?

    No,  with the Extreme filter it would be too hard to get the water through the filter as you have to squeeze and suck the water through the filter. No, they will not fit.

  • Why doesn't this one "say" it filters out viruses and bacteria

    The EPA made new rules that they have to be registered through them to claim they remove it to be able to put it in the description but they do remove it and have been tested through a third-party testing company you can see the test result at the bottom of the description.

  • Hello! Is there a bottle that has all of the filter features that this one dies but also includes filtering out parasites, viruses and bacteria alongb with the radioactive, Henry metals and other chemicals in the list here?

    This one is the only one we have that filters all of that, we are hoping to have them back in stock within a week. The advanced bottle will filter everything except the radiologicals.

  • Does the filter have to be flushed before use?



    1. Twist off bottle cap.
    2. Remove the sticker from the
    bottom of the filter.
    3. Fill bottle with water and
    replace bottle cap securely.
    4. Hold bottle at 45-degree angle
    and squeeze in order to force
    water through the filter and up
    through the straw.
    5. Repeat twice.

    Your bottle is now ready for use.

  • Will this increase alkalinity

    No, this one will not you would need the Ph bottle here is the link to it.

    Seychelle Ph20 28oz pure water filter bottle

  • Hey there would this be a good choice to take to Peru with me?

    Yes, it would be a great choice to take to Peru, as it does filter bacteria, viruses, and a wide range of contaminants.

  • Can't find replacement filters and price ?

    Here is the replacement filter link.

    Seychelle Extreme Replacement Filter

  • Will this bottle be good for mountain creeks or very dirty water

    Yes, you can use virtually any water source such as lakes, ponds, creeks, and such.

  • I wanna make sure I have this correct... does this water bottle come with a filter or do you have to purchase one right away?

    Yes, it does come with a filter.

  • does it remove bacteria

    Yes, they do remove bacteria and viruses.

  • How many gallons of water does a new 28oz bottle filter?

    They have a filtering capacity of 100 gallons.

  • I need to know the difference between the 38 oz extreme flip you filter and the 20oz pink extreme filter going to be in wilderness situations. Thank you

    The 28 oz and 20 oz filter the same. The 28 oz holds more water and is more durable than the 20 oz. For camping, hiking and as you state wilderness I would recommend the 28 oz bottle.

  • Can I use well water in a developing nation? How does the add on ph filter work? Can I buy replacement filters for this? I spend up to 9 months a year in Liberia West Africa. Is there also an extreme picture model.

    Yes, you can use well water. You would just purchase the Ph filter and use it in the bottle. Yes, you can buy replacement filters here is the link to them. No there is not a pitcher with the extreme filter but we do have a pump.

    Seychelle Extreme Replacement Filter

    Seychelle Pump Water Filter

  • Can I use rainwater in bottle?

    Yes, you can use rainwater or water from a lake or stream.

  • I was using this one everyday, at the gym and out and about. I drink the filtered water from the pitcher at home. Is this better than the ph20 Pull Tops. i see it is more expensive, but is it better for daily use?

    Yes it is a lot sturdier, It is not a ph filter but you can also put the ph filter in this bottle also.

  • How much does the bottle and filter weigh (before filling with water)?

    They are around eight ounces.

  • What is the difference in the extreme filter on my old cup and the now advanced filter?

    The Extreme/Rad/Advanced filter filters everything the advanced filter does, plus viruses.

  • How much fluoride does this remove?

    They reduce up to 90% of fluoride.

  • replacement filters ?? can I purchase replacement filters for the 28 oz bottle ??

    Here is a link to the replacement filters.

    Seychelle Rad/Advanced Replacement Filter

  • How do you know when the filter needs to be changed since you may be drinking from different water sources ?

    The flow will slow way down or just stop, or the bad taste will start coming back.

  • How do we know we have gone through 100 gallons and it is time to replace the filter? (Hoping we don’t have to count every ounce we drink?)

    It will get really hard to get water through the filter or the bad taste will come back.

  • Could I use this to filter water from the hot tub for drinking in an emergency?

    Yes, you can.

  • Does this Extreme/Rd/Advanced also clean like the Seychelle Advanced Water Filter Bottle 28 oz Flip Top? Can it be used to purify toxic water after a flood and has sewage and chemicals in it?

    Yes, it filters everything the advanced does plus radiologicals and viruses.

  • Good morning! The EXTREME/RAD/ADVANCED FLIP TOP WATER FILTER BOTTLE. The Rad is for Radiation or Radiological and what is the differece?

    The extreme/rad/advanced removes everything the rad does plus bacteria and viruses.

Customer Reviews

Based on 5 reviews
Pamela Duane
water bottle

I feel for the price the water bottle is cheaply made.It sweats and when you put the spout back down to close it water runs out.The water itself tastes great so no complaints there.You need to upgrade the water bottle.

Donna C
Great Addition to trip

I just got back from a 2 week trip to Peru. I used the Seychelle Extreme/Rad/Advanced Flip Top Water Filter Bottle the whole time. I am a fan! First, the bottle is just the right size to fit in my backpack but provided plenty of water before the next refill. Second, this bottle saved me so much money! Every restroom or dining stop got a refill - I never ran out of water. Third, the water tasted great. Put a couple of lime slices in during the trip to clean the filter and refresh the bottle. Didn't taste the lime in the water. Fourth, it was an easy squeeze of the bottle to get the water through the flip top. Fifth, used a second bottle to fill some other trip member's Nalgene water bottles. We didn't do much hiking this trip but I would have no concern whatever using river or lake water to keep this bottle full. Am a very happy customer. The only con, and I mentioned this before in a review before the trip, is it was a bit hard to do the double flush of the filter before using the bottle due to the arthritis in my hands. But once that was done - no problem at all using it to drink from. I would highly recommend this product to anyone traveling around whether errands at home or on the road in a different country!


wonderful way to take water with me as I drive around doing errands.

Kari Reed
Great product and fast service!

I am so relieved to have these water bottles in my family's go bag! They came so quickly and look to be of good quality. Thank you again for offering this product!

Joan L
Okay . . .

Pros: Water tastes great. Cons: Screwing the top on straight, so it doesn't leak or pop off, is tricky.

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