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The Water Pur Company KW1 10-inch Fresh Water Filter for Forest River RVs

Product Number: FOR-KW1
Vendor Number: KW1
$36.99 $29.99

The Water Pur Company KW1 10-inch Fresh Water Filter for Forest River RVs

Product Number: FOR-KW1
Vendor Number: KW1
$36.99 $29.99 You Save $7.00 (18.9%)
Add $35.00 worth of items to your cart to qualify for


The Water Pur Company KW1 10-inch Water Filter filters all water going into your boat or RV, not just drinking water, thereby protecting your complete plumbing system from contaminants.

It provides filtered cold and hot water to your bathroom, kitchen and galley. It is used as a replacement water filter used in Forest River RVs model year 2014 to present. This water filter is designed to fit the Water Pur Company RCS / FR1 filter housing.

Prop. 65 Warning for California Residents

WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Additional Information:

Prepare Your RV For Spring With This Handy Checklist - Get Your RV Or Camper Ready For The Road With De-Winterization Tips From The Hanna Trailer Supply Team.

RV Water Filter FAQ

1. Why does my water look gray after I change my rv water filter?
This is a common occurrence after changing a carbon filter and is caused by fine carbon dust being flushed out of the cartridge. It will be gone after you run a few gallons of water through the unit.

2. When should I change my rv water filter?
There are two primary indicators that will alert you to replace a filter cartridge. The first indicator is a reduction in flow rate, which is caused by a filter getting plugged with sediment. The second indicator is a little less obvious and involves your taste-and-odor rv water filter. If you notice that the taste and/or odor of your water is not as clean as it used to be, it is very likely that your carbon rv water filter is losing its effectiveness and needs to be replaced. This assumes that you have a carbon filter.  

4. Why should I filter all the water going into my RV, including the water for the toilet?
Many plumbing fixtures, both in homes and RVs, have small orifices and moving parts that come in contact with the water. Sediment and sand can wreak havoc in these fixtures, and removing the sediment is often much cheaper than repairing a plugged or damaged fixture. RV parks can have a real load of sand and sediment in the water. 

5. Why would I need a double-canister filter setup?
There are two primary tasks that you'll want your filtration system to perform: remove sediment and improve the taste and odor of the water. While it is possible to do both with one rv water filter, you'll get better performance if you utilize separate water filters for each of these tasks.

6. Do rv water filter canisters need to be upright to work properly?
No, they can be mounted in any position you want. However, cartridges containing granular carbon may have a problem if not upright. Granular carbon is subject to "channeling" in which the water forms small channels that enable it to bypass the carbon. This condition seems to occur more when these cartridges are not upright.

7. Why can't I have a clear canister as one of my two in a dual-canister rv water filter system?
You can, of course, and we sell them that way. However, if you are planning to set up your canisters outside your RV where a lot of light will be available, we don't recommend you use a clear canister. The reason for this is that the light will promote algae growth, which will prematurely plug up your filter. If you want to include a clear canister, you should place it somewhere that is protected from light such as a bay or under the sink.

The KW1 replacement filter is a WQA Gold Seal Certified Product that is rated for 10,000 gallons of chlorine reduction for one year of use. The initial pressure drop with this filter in operation measures only 2.6 psi, where others have pressure drops of 10 psi or more. 


  • Rated for 10,000 gallons of chlorine reduction for one year
  • Reduces Volatile Organic Compounds (VOCs)
  • 2.5 GPM flow rate
  • Unique o-ring seal eliminates bypass
  • Initial pressure drop of only 2.6 psi where others have pressure drops of 10 psi or more
  • Manufactured using environmentally friendly Greencarbon which is a high performance coconut shell carbon which has exceptional kinetic dynamics
  • Thick wall for long life and greater chlorine taste and odor reduction
  • Solid compression molded carbon block for long life
  • Highly effective Chlorine reduction through 10,000 gallons at 2.5 GPM flow rate
  • Reduces sand, fine sediment and rust particles
  • Temperature Range: 40-165 degrees F (4.4-73.8 degrees C)
Filter Fits my Georgetown
By: G23dave
on 2/9/2020
Filter fits and does a decent job of getting all the big stuff out of the water before it makes it to the Fridge where I have another filter.
water filter
By: Cliff Cogan
on 9/26/2018
Forest River R.V. use this filter in all their water systems. We have really rusty hard water. This filter removes this with no problems. The water comes out very clear No more brown spots on the sink or toilets. As a person in the medical field having clean no spots is a must.
KW1 Filter
By: Tom
on 11/13/2017
Arrived quickly and as described. Lowest price found. Thanks!
Water Filter
By: CindyP
on 10/30/2017
Water filter works great and price is best around, delivery was fast will keep ordering from HannaRV
Simple Ordering Process
By: Lisa McBride
on 8/29/2017
Best price anywhere on this filter and the delivery was so fast! Will continue to get my replacement filters and any other RV products that I might need in the future. Thank you for the great service!
good price, prompt delivery
By: William
on 4/21/2017
Item was as described, the price was better than other sites, and it was delivered in pristine condition and in a timely manner.
Kw1 filter
By: Bonniebp
on 10/16/2016
Great price & rec'd quickly. Thank you for the great customer service!
Fast@excellent price
By: Gordon lane
on 7/12/2016
By: giselle
on 4/23/2016
Received very quick and price was good. Will order from them again.
Greatb Filter and Company
By: William
on 6/24/2015
The product works just as advertise. I would buy form this company again.
KW1 filter
By: Danny Fultz
on 5/23/2015
Great customer service, wonderful and fast delivery, AND the best price found. The filter works well, providing clear and clean water. The missing 1/2 out of a full 5 rating has nothing to do with the company, but rather due to the fact this is the ONLY filter we can use in our RV, and it is very hard to find places that sell it, which results in the manufacturers higher price. Hanna RV excels at what it does and provides! Thank you, and we will be purchasing again.
KW1 Filter
By: Brenda
on 4/2/2015
This filter does an excellent job filtering water and is easy to change after you have done it the first time. I rated a 4 instead of a 5 because it seems they have to be changed too frequently. But it's worth it for the filtration quality even though they a pricier than some others. Hanna RV has the best price by far and orders are shipped and received very quickly.
By: Henry Shelly
on 1/30/2015
Best price I found anywhere for this filter. Quick shipping made for a short turnaround time. Thank you Hanna!
By: David Espinoza
on 12/9/2014
Just as described, lowest price found. Great fast service. Will continue to order from this place.
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