FAQ

Under-sink filters connect to your cold water line and use various methods like activated carbon, reverse osmosis, or multi-stage filtration to remove impurities before the water reaches your faucet.

Depending on the filter type, they can banish chlorine, sediment, rust, lead, cysts, industrial pollutants, and sometimes even fluoride, bacteria, and viruses from your drinking water.

For most homeowners with basic plumbing skills and the provided instructions, installing an under-sink filter is usually a manageable DIY project. But, depending on your situation, a professional might be your best bet.

As a rough estimate an undersink filter installation might cost you between $200 - $800, depending on your sink and local labor costs.

The frequency depends on your water usage and quality, but most cartridges need replacing every 6 months to a year.

Some filtration systems can impact your water flow, so if you're dealing with low water flow, it's worth checking if a particular model might exacerbate the issue.

In the US, standard kitchen water flow should be between 2-3 GPM but this can be affected by water pressure in your neighborhood or even in your house.  The filters we carry go from 1.8 GPM (EPWPFF) to 2.5 GPM (3MFF100) so if there is any flow impact, it’ll be negligible.

Under-sink filters come in various sizes, so measure your available cabinet space beforehand to ensure you can accommodate the unit.

Here’s a breakdown of the space required for the models we carry:

• 3MFF100 - Height: 19 1/8”, Width: 4.5", Depth: 4.5” 
• EF-1500 - Height: 15", Width: 5", Depth: 5" 
• EF-3000 - Height: 20", Width: 5", Depth: 5" 
• EF-6000 - Height: 22", Width: 5", Depth: 5" 
• EPWPFF - Height: 16", Width: 4", Depth: 3-1/2"

While most under-sink filters are designed to work with standard sinks and faucets, it's wise to verify compatibility if you have a non-traditional setup to avoid any installation hiccups.  

The best way to do that is to discuss it with the plumber who installed the non-traditional setup. The next best thing is to contact us.

If you’re a renter, your best bet is to discuss it with your landlord or property manager.  Many apartment buildings have begun to allow renters to install water filtration systems, however they may require that you use their plumbers, for insurance reasons.

A pitcher filter is a great first step but they cannot compare to an undersink filter.  A pitcher filter uses gravity to push the water through, but an undersink filter has the full force of the water coming from your pipes.  The additional force allows more contaminants to be removed in less time and for less money.

You could, and many people do.  There’s nothing wrong, inherently, with bottled water.  However, science is still learning how micro and nano plastics impact on human health.  And every time you break those little seals on a plastic bottle of water and hold it to your lips, you’re drinking micro and nano plastics.

At The Right Filter, we’d rather you find a water filter that makes the switch away from plastic bottled water easier.  Even if that filter is a pitcher filter or a filter from another company.

This is a common question and a little difficult to answer easily.

First, Berkey filters are passive gravity systems.  In a lot of ways, they are an upgraded pitcher filter.  But without the force of water pressure you get from an undersink filter, they simply cannot filter water at the same rate or the same level of purity.

On the other side of the discussion, there are the reverse osmosis systems, from Waterdrop and other companies.  Reverse osmosis (RO) systems are the most aggressive filtration technology that exist.  They strip everything out of water, leaving only H2O molecules.  Not just chlorine and arsenic, but also salt and iron.  As a result, RO systems create the purest water possible.

While this is great for labs and scientific endeavors, it can be lethal to human beings in large doses due to the lack of minerals.  The human body requires minerals, like salt, in the water we drink.  Hydration salts, used by athletes who are concerned about dehydration, are primarily salt, sugar, and potassium.  In fact, most RO systems come with remineralization liquids or additives.

So, while there’s nothing wrong with these well-known brands and solutions, they can be “not enough” or “too much”.