Weeplow® Neptune 11L

Gravity filtration system 11 liters

333 reviews

This gravity-fed water filtration system is manufactured from food-grade AISI 304 stainless steel. It is highly effective at making water from unreliable sources safe to drink.

The system is supplied with two O’Pure 2 activated carbon purification elements. These have a lifespan of up to 22,000 litres or up to 2 years, depending on usage and water quality.

This allows you to enjoy clean, pure water at low cost, from virtually any water source — whether from your mains supply or a private well.

Which size should you choose?

  • Venus: Ideal for 2–3 people, or for everyday use where space is limited.
  • Earth: Recommended for 3–5 people, or for those who prefer to refill less frequently.
  • Neptune: Perfect for larger households, couples who consume a high volume of filtered water, or semi-professional environments.
219,90€ 249,99€ -12%
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Weeplow® O’Pure 2
Weeplow® O’Pure 2
89,17€ 104,90€ -15%
Weeplow® O'Pure 2B
Weeplow® O'Pure 2B
50,92€ 59,90€ -15%

Why you’ll love it

  • Enjoy clean, great-tasting water every day.
  • Reduce reliance on bottled water and heavy water packs.
  • Help cut down on single-use plastic bottles.
  • Long-lasting filters designed for everyday use.
  • A refined design that complements modern interiors.
  • Icon client satisfait Over 98% customer satisfaction
  • Icon camion Free delivery to local collection points on all orders
  • Icon SAV Customer support available 7 days a week
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Weeplow® Neptune 11L

219,90€
Exclusive Promotion

Product Information

Product Details

ThisWeeplow® Neptune gravity filtration systemis made from afood grade AISI 304 stainless steel. Everything is carefully polished foraesthetic mirror effect. In addition to its aesthetic side, the system is veryrobust, resistant to abrasion and corrosion.

It comes witha pair of Weeplow® O'Pure 2 purification elementscapable of filtering up to22,700 liters of waterbefore needing to be replaced. These elements combine high quality activated carbon and ion exchange resineliminating 99.99% of impurities contained in water. They can be used forpurify tap waterbut also and above all less reliable water sources such aswater from rain, rivers, streams, wells, lakes, etc.

Finally, this Earth filtration system is ideal for bothdomestic usethat foryour travels. In fact, it workswithout electricitythanks to gravitational force, which is ideal for all kinds of outdoor activities such as parties, camping, hiking, guesthouses etc. At home and away,enjoy pure and authentic water!

Contents of the pack:

  • 2 AISI 304 stainless steel tanks with lid
  • 2 O'Pure 2 purification elements
  • 1 stainless steel faucet with water level indicator
  • 1 key for mounting the faucet
  • 2 plugs to fill unused passages in the upper tank
  • 1 non-slip support
  • 1 stainless steel support with 4 legs
Features
Model Neptune
Color Silver
Material AISI 304 stainless steel
Capacity 11 Liters
Power Type Non-Electric
Filtration flow (with 2 filters) 3.8 Liters per hour
System height (without support) 56 centimeters
System height (with support) 72 centimeters
System diameter 24 centimeters
Weight of the complete system 4.8 Kg
Certifications and accreditations

The Neptune filtration system has been tested in real conditions by several independent laboratories around the world. It has notably been tested by independent laboratories in the United States. These analyses have demonstrated that our O’Pure 2 filters have a reduction capacity of nearly 99.99% on bacteria such as E. Coli. Analyses have also been conducted on forever chemicals (PFAS) that our filters reduce by more than 99.9%.

Furthermore, the laboratory SGS present in 140 countries around the world and recognized internationally for its expertise in the field of water has conducted several reduction analyses on our O’Pure 2 filters. Tests have thus been conducted on the MS2 virus that our filters reduce to 99.9999%, other analyses have been conducted on pesticides and heavy metals according to NSF/AISI standards 42-53.

Unlike other brands, we have deliberately chosen to conduct analyses in different laboratories in order to provide maximum transparency to our customers.

You will find below the analysis reports established by these laboratories.

Bacteria Analyses PFAS Analyses Virus Analyses Pesticides Analyses Heavy Metals Analyses

Frequently Asked Questions

What is the Weeplow® gravity water filtration system and what does it do?

The Weeplow® gravity water filtration system is a non-electric household water filter designed to improve the quality and taste of drinking water. Supplied with two O’Pure 2 filter elements, the system uses gravity-fed filtration to reduce a range of commonly found contaminants, including chlorine and sediments.

Under controlled laboratory test conditions, the O’Pure 2 filters have also been shown to reduce E. coli (a bacterium commonly used as a performance indicator in water filtration testing). As with all filters, real-world results depend on the quality of the source water, correct installation, and ongoing maintenance, so users should follow the instructions provided.
What is the list of undesirable elements removed by the Weeplow® O’Pure 2 filters?

The following elements are reduced by the Weeplow® O’Pure 2 filters:

  • Coliforms
  • E. Coli
  • Lead
  • Iron
  • Mercury
  • Chlorine
  • Bisphenol A
  • Chloramines
  • Pharmaceutical products
  • Petroleum contaminants
  • Methylcyclohexane-methane
  • Pesticides
  • Heavy metals

This is not an exhaustive list. For more details, please consult our analysis reports.
How do I prime my Weeplow® O'Pure 2 filters before first use?

Regarding the priming of the O'Pure 2 filters, the following steps must be followed:

  1. Place the small beige gasket provided on the filter's thread to ensure that water properly enters the filters and does not splash everywhere.
  2. Then place the gasket against the tap.
  3. Slowly open the tap so that cold water flows through the filter.
  4. Hold the position for at least 2 minutes, then you will see the filter weeping water.

Once the filters are primed, install them in your system and perform one to two complete filtration cycles of 8 liters before consuming the water. Indeed, it sometimes happens that the water is cloudy during the first filtration cycles. This is generally due to residual dust trapped in the micropores of the filters. If necessary, you can also clean the tanks with hot water and soap before using them.
What is the lifespan of the Weeplow® O'Pure 2 filters? How often should the filters be replaced?

A pair of O’Pure 2 filters can filter up to 22,000 liters of water. This is a theoretical lifespan if certain conditions are met, namely that the water you are filtering is already relatively clean and that you take the time to maintain your filters according to the instructions provided in the instruction booklet that comes with the product.

On the other hand, if you are filtering water from an unreliable source, such as rainwater for example, and you do not take the time to maintain your filters, then the lifespan of these will be shorter.

Also, for optimal filtration, it is recommended to change the filters after 2 years of intensive use. Although the filters will still be able to effectively filter a good portion of contaminants even after 2 years, it is possible that their filtration power may be reduced on certain contaminants.
How to maintain the stainless steel tanks of my Weeplow® system?

Regarding the maintenance of stainless steel chambers, we recommend cleaning the chambers with soap and hot water once a month. In areas where the water is hard (rich in limestone), we suggest using pure vinegar or a 50-50% mixture of vinegar and water to spray and let sit for about 15 minutes. Finally, wipe everything with a ScotchBrite pad or a soft brush, then wash with soap and rinse. Clean each tank individually.
How to maintain the Weeplow® O’Pure 2 filters?

For the filters, our recommendations are to wash them every 2 months in cold water (always) and to gently scrub them using fine sandpaper or a toothbrush. Scrub one section of the filter until you notice some black residue on the pads, then move on to the next section. Finally, re-prime each filter, then reinstall it in your tank.
Why does my filtered water appear cloudy or taste unpleasant at first?

It is not unusual for the water to appear slightly cloudy or to have an unusual taste during the first use of a new filter. This is typically caused by harmless residual carbon fines (very fine particles) that can remain in the filter following manufacture and transport.

For this reason, we recommend running at least two full filtration cycles and discarding the water before regular use. Washing the upper and lower tanks with warm water and mild washing-up liquid before the first filtration can also help.

Cloudiness or taste issues may also occur if the filters have not been fully primed. In some cases, fine particles can remain trapped within the filter media during initial use. Priming the filters several times, as described in the instructions, usually resolves this and allows the filtration performance to stabilise.
Why and how to perform a food coloring test?

In certain situations, it happens that you do not fully trust your filters. Indeed, the filtration rate may seem too fast to you or the filtered water may have a slight taste at the outlet.
In order to isolate the problem as best as possible, it is often useful to perform the food coloring test.
To do this, add food coloring (without sugar and without thickening agent) to the upper tank of the Earth system. It will then take on a pink or red color. Do not hesitate to mix everything so that the coloring spreads perfectly in the tank. The water that comes out of the filter must be completely clear. The best way to see this is to put a little water in a glass. You will then be able to judge at a glance whether the filtration system is working optimally.
A part of the water in the upper reservoir of my Weeplow® system is not flowing through the filters. Is this normal?

Yes, the fact that there is a little water left in the upper tank is normal and it generally concerns the last centimeters of water (between 1 to 2.5 cm). Due to the structure of the filter, water passes through very small micropores before entering the lower tank. The lower the water level in the upper tank, the less pressure there is to force the water through these micropores. You may have noticed that the system purifies much faster when the tank is full than when it is half full. This is because the pressure exerted on the water is greater.
I have been using my purification system for several months and the filtration speed has significantly decreased. Should I already replace the elements?

No, it is generally enough to clean your Weeplow® O’Pure 2 purification elements to revive them. The slow flow rate is often explained by the sediments and other residues previously filtered that clog the micropores of the purification elements. Simply remove the elements from your system and scrub the outside of each element with a stiff toothbrush or fine 3,000-grit sandpaper.
Scrub one section of the element until you see a bit of black on the pads, then move on to the next section. This simple process should only take a few minutes. Re-prime each element, then reinstall it in your unit. Your flow rate should be restored.
How long can I keep the water filtered by my Weeplow® system?

We advise against storing filtered water with a Weeplow® product for more than 3 days. Indeed, if you store your filtered water in a humid and/or warm environment, bacteria can develop again and multiply more quickly.
Are Weeplow® gravity filtration systems guaranteed?

Yes, our gravity filtration systems are guaranteed. The stainless steel chambers as well as the support and the faucet with gauge are all guaranteed for 10 years. In case of rust, leakage, or malfunction, we commit to replacing the item.

Regarding the charcoal filters, they are guaranteed for 2 years.

In case of a problem or question, do not hesitate to contact us by email at contact@weeplow.com.