“This filter has given us water that is as good or better than the large bottles of spring water we'd been buying,” one tester revealed. In addition to the water quality, reviewers liked that once it was set up, the separate faucet was easy to access, with the filter system fitting nicely underneath the sink. The one negative, according to our reviewers, was the time-consuming installation, but, overall, they thought it was worth the price tag: “We'll have to buy new filters, but we'll still save money in the long run by no longer buying bottled water,” one person noted.
One of the draws to Door to Door - besides the colorful, cartoonish characters greeting visitors to the website - is the blog. It is chock full of useful information about travel to some of the cities it serves, spring cleaning tips, and even antiquing in various cities. I would read it without having to make a move. Seriously. Still, despite its pioneering history, the company only serves a limited public because of the limitations of its geography.

The owner of this website is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon properties including, but not limited to amazon.com or any third party affiliated with amazon.com. Amazon and the Amazon logo are trademarks of Amazon.com, Inc, or its affiliates.

K&N is the home of the original red oiled air filter. In the early 1960s, two motorcycle racers, Ken Johnson and Norm McDonald (K&N), developed a ground-breaking new idea for an oiled air filter. Five decades later, K&N® is still innovating industry-leading filtration technology, and offers outstanding protection for everything from top-fuel dragsters to commuter vehicles across the globe. Thank you for helping us reach 50 years in business!


You may not realize that the air inside your home can be even dirtier than the air outside in the environment, and a high-quality air conditioning and furnace filter can help improve the quality of the air that you breathe! Each K&N lifetime washable home furnace filter is engineered to provide exceptional capturing capability for airborne contaminants such as bacteria, mold, spores, dust mites, and carpet fibers—and helps protect your family from allergens including pollen, pet dander, and dust.
I’ve read a lot of information that says that granulated activated carbon will remove anywhere from 40-70% of arsenic from the water. Why do you say that it doesn’t remove heavy metals? Can you please point me in the direction of the information that you used for that? I’d like to read up on everything before we make our decision. We are on a well with arsenic and I’m looking for the best solution.
We offer only the finest water filters, many of which are ANSI/NSF Tested and Certified. Also we offer reverse osmosis systems, whole house water filters, HEPA air purifiers, refrigerator water filters and air conditioning/furnace filters...all personally tested and approved by our knowledgeable staff. We've narrowed our selections to include only the top-rated brands in the marketplace. We do our due diligence. so you don't have to...after all our name is BestFilters. Questions about water filtration or air purification send an email to [email protected]. 
×