Best RV Water Filters – Reviews and Guide 2021

Successful camping requires a few things. Having one of the Best RV Water Filters on hand, so you don’t get sick is at the top of the list.

Thankfully, recreational vehicles make it easier for campers to carry water in their reserve tank. Just make sure to filter out any sediments and bacteria before you drink it.

Advantages of RV Water Filters

 The benefits of utilizing RV water filters are many. Here are but a few:

  • Convenience – Access to clean water while traveling can be difficult, which makes RV filters essential. Filters are convenient for you to have clean water, largely irrespective of location.
  • Pricing – RV water filters are cost-effective. The initial purchase and maintenance are quite budget-friendly when considering the price per gallon of clean water versus buying bottled. Additionally, there are a variety of filters. One should acquire one that is appropriate for their recreational vehicle and within budget. The overall operational cost of running a clean RV and camping is reduced significantly when incorporating a water filter. This is because the need to buy bottled water will be eliminated, lowering the cost of camping and/or traveling.
  • Storage – It is cumbersome to store bottles of water for a camping adventure or travel. Water is also weighty and will reduce fuel efficiency when the water tank is full. Having an RV water filter makes it easier to move from one place to another without transporting water for everyday use. Filters designed for recreational vehicles are small and can easily be carried around. Having replacement cartridges is paramount, and this aspect should not be overlooked.
  • Clean water – The primary objective of having an RV water filter is access to uncontaminated water. This fact is among the top advantages of having a filter system on a recreational vehicle at all times.

RV Water Filter

How it Works

Filtration of the water is done before it enters the RV. The water filter is placed at the entry point into the RV’s system to ensure that all the water going in has been purified. There are diverse types of filter systems that will be discussed in this article.

To grasp the concept of how a particular method works, one ought to be familiar with the type of filtration offered and the mechanics behind each. Standard types of various systems available on the market include canisters and filters. The best RV water filter system works by getting the water clean before it gets into the storage system, hence preventing problems before they can start.

What to Look for When Buying an RV Water Filter

There are numerous factors one should bear in mind when looking to acquire the best RV water filter. To get the best recreational vehicle water filter for their needs, one should buy from a dealer with a reliable (and positive!) reputation in the business. Once the store for purchase has been decided, other factors to be considered include;

Type of Filter

There are various kinds of water filters, each with pros and cons. Multiple factors influence the acquisition of a particular system. Consider the following:

  • Cost – Pricing of the various types and brands differ. One should ensure the option chosen is ideal for their budget. Companies offering competitive rates and excellent quality filters should be given top priority. The cost of replacing cartridges should also be factored in during purchase to ensure that one can manage their filter after the acquisition. It does little good to buy a filter and never be able to afford to change it!
  • Availability – A particular brand on the market may not be available in your locale, which might prompt a consumer to shop online. When purchasing from a virtual store, one should consider shipping rates and area of operations as well.
  • Efficiency – The type chosen ought to be ideal for the task at hand. Filters for potable (drinkable) water have different requirements compared to water for bathing and flushing toilets.
  • Size – The various kinds of water filters come in an assortment of sizes. One should be able to determine which one is compatible with their RV system. The anticipated amount of water to be filtered should be considered when picking out the filter’s size to acquire. So should the type of available water in the region.
  • Water Source – A survey of the region to be visited should be conducted and queries regarding the water supply considered. Once one is aware of the area’s particulars, the appropriate type of camper water filter can be acquired.

How Much Water to be Filtered

The amount of water you intend to purify determines the type of RV filter to purchase and the replacement cartridges needed. Your frequency of use should be factored in as well. Mostly to ensure that one has enough supply of the filters and other accessories necessary for the same that may require replacement. The amount of water to be filtered is determined by the number of people on the trip and the stay duration.

During planning, these factors will help you decide which filter to go with and how many to purchase.

Types of Water Filters

To understand the various options available, one should read through the numerous RV water filter reviews online. Some of the common types that one will come across are:

Compact Canister

The compact canister system fits outside the RV system on the hose but can also be set up directly inside the RV structure. With the canister system, one should buy appropriate filters. It is advisable to acquire a clear canister so that one can track the buildup of sediments. And to know when to replace the filters. This system is among the best RV exterior water filters in the market.

With this system, one can install up to three canisters, each filtering components out of the water. Although this alternative is available, it is not a must. One can opt for one cartridge with multiple filters, including a specialty one, to improve water quality. Some of the specialty filters available include but are not limited to birm, nitrate, phosphate, and de-ionized cartridges. The choice of which filters to be acquired is determined by the type of water available in the region to be visited.

Inline Filter

The inline water filters for RV are the most common type that you will find on the market. They are relatively cheap, fast, easy to use, and simple to install. A drawback is that this system requires relatively frequent replacements. The inline RV water filter fits the water entry point, ensuring that all water entering the vehicle is free of odor and impurities. Sediments, chemicals, and smells are remedies offered by the best inline RV water filter system.

Reverse Osmosis

You read that correctly! It is not some bizarre form of science fiction! The Reverse Osmosis (RO) system works by forcing water through a semi-permeable membrane to cleanse it from impurities. Calcium and lime are among contaminants. This system works to eliminate without the use of chemicals.

This system is relatively pricey when compared to other methods available on the market. But that is to be expected for a system that works like magic, but is in fact, grounded in solid science! Its efficiency is also top-of-the-line.

Reverse Osmosis Breakdown

RO filters are made up of a filtration system, boost pump, membrane cartridge, and RO canister. The filtering system is essential to ensure that one starts with clean water. This move is crucial as it guarantees the longevity of the RO system.

The water pressure determines whether one needs the boost pump or not. This specific part of the system’s role is to boost the water pressure for the desired results to be achieved. The RO system has a provision for additions such as an automatic on and off mode, water sensors, and meters.

It is worthy of note that this system is ideal for purifying drinking and cooking water as it discharges about seventy percent of the water let into the system. It is suitable for the kitchen sink. Installation can be done in this recreational vehicle area to allow for additional cleaning of water from either the inline filter or compact canister.


When should I change my filter?
Various indicators will help indicate when to change the filter. Instructions from the manufacturer regarding replacement should be adhered to. Some systems come with a sign of either noise or light to notify when it is time to replace the filters. Also, a change in the water’s taste or smell indicates that the filter may be malfunctioning or ready for replacement. The best inline water filter system, for instance, requires replacement after at least sixty days.
Can the RV water filter be used for hot water?
No. Most, if not all, RV water systems are designed to handle cold water. Running hot water through any of them could cause damage to the system and how it functions.
How long does a filter last?
There is no exact time that a filter should be in use. This is because the usage, type, and source of water, among other reasons, affect the duration in which a filter should be replaced.


Before settling on the best RV water filter to install or buy, one ought to be aware of the various types of filters available on the market. After knowing the various aspects of each type, it is easier to choose a system that will cater to your needs. Happy Camping!

Charley Waters

Hey! I have been fond of the topic of RV for more than 5 years. I have experience in the features of life on wheels. I'm a member of various RV communities and support communication with people who living in RV full time. I hope my articles will be useful to you.

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