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Not every RV needs a multi-stage filter. The compact SOLO mounts permanently inside your RV and filters water through a single 0.2-micron stage, giving you clean drinking water without taking up much space.
Campground and city water quality changes from one stop to the next. The SOLO uses a single 0.2-micron filter to reduce sediment and other contaminants without the added size or maintenance of a multi-stage filtration system. It blocks particles 100 times smaller than what most RV filters catch, giving you cleaner drinking water directly from your RV faucet. The same filter technology is also used as original equipment on select RV models from leading manufacturers, including Forest River, Keystone, and Alliance RV.
Choose the SOLO when you want filtered drinking water available every time you turn on the faucet without the size or maintenance of a multi-stage filtration system. The permanently mounted filter connects directly to your RV's standard 1/2" PEX plumbing, making it a better choice than a portable filter for RV owners who camp frequently or want filtration that's always ready to use. If you want multi-stage filtration throughout your RV, the GoBluTech TRIO is going to be a better fit.
Once installed, the SOLO becomes part of your RV's plumbing, so there's nothing to unpack or reconnect every time you camp. The compact housing uses a 5" filter and weighs only 2 lbs, making it a good fit under a sink, in a wet bay, or other tight spaces. The system includes pre-installed 1/2" PEX fittings, a mounting bracket, and a housing key for installation and future filter replacement.
Pair the SOLO with the PurBlu UVC Purifier (GB69FR) and PurBlu Faucet (GB99FR) for additional purification at the sink. Add the Flow Meter (GB37FR) to monitor water usage and help track filter life. Before seasonal storage, clean your RV plumbing with GoBluTech Bleach-Free Sanitizer (GB77FR).
Customer Satisfaction Score:
91% were satisfied with this product
9% of customers were not satisfied
Ratings & Reviews
This is newly installed, it works, but I have no idea about longevity. The low rating is due to the lack of directions or marking on which port is the input and which is the output. Neither the Blu nor eTrailer websites provide this information either. When I called eTrailer the representative said it does not matter. This is clearly incorrect. When you take it apart it is obvious that one port supplies or takes water from the outer part of the filter while the other port connects to the inner part of the filter. My guess is that water coming into the unit should go through the outer part of the filter and then withdrawn from the inner part which is how I installed it. A simple directional arrow on the unit would solve this glaring oversight. Directional arrows are extremely common on many products, such as RV pumps.
Easy to install (with the right tools of course) works great, easily hidden out of site.
Installed unit in Class B. Very limited space so this was perfect. Used 2 after market Stainless 1/2" NPT nipples to attach to existing PEX screw on.

Lazer S.
4/21/2026
Glad it worked for you, Roland! Have you had the chance to use it yet? These are still pretty new to us so we would very much like to hear your feedback on the taste of the water.
Do you have a question about this RV Water Filter?
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Lazer S.
5/5/2026
Sorry to hear your difficulties with the install, Yancy. The ports/water flow is directional, but it is a little difficult to identify. Take a look at the black assembly head that the stainless steel canister is attached to. Right above both the inlet and outlet fittings, there should be arrows indented into the black assembly head indicating the flow direction. However, when looking at the front of the system (labels facing you), the flow direction will be from left to right, though the arrows on the black assembly head should confirm this. Sorry we didn't have a better answer when you called. These are still very new parts for us and we are getting new info on them often. What did you install it in?