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50+ reviews with an average of 4.6 stars

Water Filters

Seattle is located in an amazing natural environment. The Cedar and Tolt River watersheds readily supply the city and surrounding areas with clean and great tasting water. As a result, Seattle has the best tap water of any city in the country. 

 Is a Water Filter needed?

If Seattle’s water is so great, is a water filter needed? Although Seattle tap water is clean and soft, it also contains fluoride, chlorine, and other contaminants. However, these can be easily filtered out with a Custom Pure water filter, giving homeowners the highest purity drinking and cooking water.


Due to these additives and contaminants, Raymark recommends Custom Pure Water filters.  Custom Pure is a local company, dedicated to providing Seattle with the highest quality drinking water.

  • Our recommended type of water filter is called Point of Use. This filter is designed for one location, usually the kitchen, as the best method to remove fluoride, chlorine, and lead.
  • Furthermore, the Custom Pure MB Series filters have been designed specifically for use on water supplies similar in quality to that found in Seattle.

 Installation Method

In brief, our Raymark technicians offer two installation methods:

  • The recommended method is installing a dedicated faucet for filtered water at your kitchen sink
  • The “in line” method is running all of the cold water at the kitchen faucet through a water filter

 Filter Models

In either case, Custom Pure offers a variety of models and sizes to meet different capacity needs. In order to determine the size of the water filter needed, select the gallons per year based on the number in your household.

  • On average, a 1-2 person household will use 500 gallons of drinking and cooking water in one year  
  • A 3-4 person household will use about 1000 gallons
  • A 5-6 person household may use about 2000 gallons  

 MB Series

Gallons Per Year* Model
500-600 Counter Top MB612
500-600 MB612-EB
1000-1200 MB618-EB
1800-2000 MB818-EB
2000-2400 MB618 Plus-EB

*To clarify, this estimated capacity is based on use of the Seattle water supply.  If used on water sources with higher mineral content, the capacity may be markedly reduced.  

In summary, call Raymark Plumbing and Sewer today to find out more about water filter installation and the benefits of filtering your drinking water.

  • Visit Custom Pure for more information on water filters.
  • Also, visit our Water Lines page for more information on water lines.

Schedule your Raymark appointment today by calling 206-430-1954 or complete our Contact form.

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  • What kind of water filters do you have available?

    We’d like to direct you to Custom Pure’s web page called Products for Drinking Water.

    Raymark recommends Custom Pure. We’ve installed a Custom Pure water filter at our shop and we all drink delicious purified water. Having a water filter under your kitchen sink is a life changer. Plus, these filters require no electricity.

    Indoor plants love chlorine and fluoride free water too.

Why Raymark Plumbing and Sewer for Water Filters?

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Honest, Upfront Pricing


100% Workmanship Guarantee


Emergency Plumbing Services

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Respectful, Expert Professionals


5 stars

Fast and friendly service. Highly recommended.

Dax Lang 2019 Google Review

Highly recommended

5 stars

Service was great, as always. About to call to set up appt for follow up phase that Jose pointed out.

B. Lakshmi 2019 email

Service Was Great

5 stars

Called on a holiday morning with a toilet crisis (it WAS a crisis because we only have one, and it was completely clogged) – Joe promptly came out and remedied the situation within the hour. Expected a long wait and a hefty bill but no such case. Joe additionally advised us to replace our old, inefficient toilet sometime in the future. Not the first time we’ve called Raymark and won’t be the last.

B. Lorette 2019 Google Review

Promptly Came

5 stars

Jose was awesome: gave my kitchen faucet a quick temporary fix while I got a new fixture, and then installed the new one perfectly. Brittany (in the office) made sure Jose got here as soon as possible!

J. Rigby 2019 Google Review


5 stars

Excellent same day service. Very friendly plumbers and office staff. Recommended to a friend the very next week.

Marion M. 2018 BBB Review


5 stars

Raymark has done several jobs for me. Ty was out today to clear a blocked kitchen line, and did a great job explaining the options, costs etc.

Todd C . 2018 BBB Review

A Great Job

5 stars

Truly excellent service; timely and very professional.

Jeff S. 2018 BBB Review

Truly Excellent

5 stars

Jose was the BEST! He was able to fix our issue quickly and cleanly.

Janeen M.  2018 BBB Review

The Best

5 stars

Hayden and his team were fantastic. Fast, high-quality work at an affordable price. They have a lot of experience dealing with older buildings, and I would highly recommend Raymark for anyone living in a building or home with older pipes.

Ann L. 2018 Facebook


5 stars

Raymark has helped me with all of my plumbing needs for the last 30+ years. They are wonderful to work with, very responsive and always able to assess the problem quickly and determine the best solution at a reasonable price.

Sheila Frawley 2018 Google Review

Very Responsive

5 stars

They did an excellent job. Work was completed on time at the price quoted. We were kept up to date at each step of the way.

Craig H. 2018 Review Buzz

Excellent Job

5 stars

Dion did a great job and was professional and friendly.

Marc M. 2018 Review Buzz

Professional and friendly

5 stars

Jose with Raymark Plumbing was very professional, clear in how he planned to fix the issue, and upfront about what the cost was going to be. Overall, the experience was very pleasant and I wouldn’t hesitate to use Raymark again in the future. Thank you!

Weston Manzer 2018 Google Review

Experience was very pleasant

5 stars

Ty and his assistant did a great job replacing pipes under our kitchen sink and attaching earthquake straps to the hot water tank. Ty was very patient in explaining the position of the straps. I would ask for him again in a heartbeat…. They were on time and finished very quickly.

Kathleen Fellstrom 2018 Google Review

Very Patient

5 stars

Had a clog that was filling up my basement. The guys at Raymark found the problem and replaced the pipe. After the pipe was replaced they made sure the rest of the plumbing was in working condition. Their attitudes were great and they worked hard. Very satisfied customer.

Joyce M. 2018 Review Buzz

Very satisfied customer

5 stars

Personnel were very warm and professional, and plumbers did a great job with both explaining and showing what they were doing. They addressed all concerns and were prompt in getting back to me. It was a big job, new sewer pipe put in from the house to the street.

Lois H. 2018 Review Buzz

Warm and professional

5 stars

Excellent workers. On time, well prepared, knowledgeable and efficient.

Dan Dawkins 2018 Review Buzz

Knowledgeable and efficient

5 stars

I can’t say enough great things about Raymark! Wonderful, friendly service. And they just replaced my business hot water heater on a Friday evening. Thank you!!

Ann D. 2018 Review Buzz

Wonderful, friendly service

5 stars

Good morning, Raymark. Thanks, Anthony, for sending Dan to the rescue last week. We hadn’t been struck by an earthquake under our kitchen sink after all. Dan tightened the wobbly faucet, as well as its companion spouts, then wrestled the obstinate spray hose into line. Ingenious, he cobbled a defense so the hose could avoid tangling in the pipes. Dan is genial, and we really appreciate his visit.

Sincerely yours,
Sharon Raymark-is-my-plumber K. 2018