Best RV Water Softeners
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On The Go Portable 16,000 Grain RV Double Water Softener with Salt Regeneration Kit and Carbon Filter
On The Go's portable 16,000 grain RV double water softener with salt regeneration kit and carbon filter.
On The Go OTG4-DBLSOFT Portable 16,000 Grain RV Water Softener
On The Go's OTG4-DBLSOFT portable 16,000 grain RV water softener for hard water campgrounds.
Grain capacity tells you how much hardness a softener removes before it needs regenerating, and 16,000 grains is the standard size in the portable RV class. Turning that into useful terms takes one calculation: multiply your water hardness in grains per gallon by the gallons you use, and when the product reaches capacity the resin is spent. At 10 grains per gallon, a 16,000 grain unit handles about 1,600 gallons, which is a couple of weeks for two people showering and washing dishes; at 25 grains per gallon in the hard-water Southwest it is closer to 600 gallons. That is the whole argument for the double-resin versions, which simply hold more resin and go longer between cycles. Fittings are the second thing to check and the most common failure point. Three-quarter inch brass connections thread onto a standard garden hose and survive being cross-threaded in the dark; plastic fittings crack, and a cracked inlet on a pressurized line is a wet-bay flood. Regeneration is the routine you are signing up for: portable units are recharged with two boxes of table salt and a rinse, and the process takes roughly twenty to thirty minutes, so a wide fill opening and a clear procedure matter more than any spec. Flow rate limits shower pressure, so check it if two fixtures run at once. A bundled carbon filter addresses taste and chlorine, which softening does not.
The short version
We compared 6 picks. Our scores range from 5.0 to 9.2 out of 10.
- Best overall:On The Go Portable 16,000 Grain RV Double Water Softener with Salt Regeneration Kit and Carbon Filter. Highest overall score in this guide at 9.2/10.
- Also great value:VEVOR RV Water Softener, 16,000 Grain Portable Water Softener with 3/4" Brass Fittings and 42" Hose. Value score of 9/10, overall 8.2/10.
- Solid build:On The Go OTG4-DBLSOFT Portable 16,000 Grain RV Water Softener. Build and materials score of 9/10, overall 8.6/10.
- Feature-rich:Essential RV Water Softener Portable 16,000 Grain with Custom Hose, 3/4" Fittings. Features score of 8/10, overall 8.2/10.
Scores are our editorial assessment, not customer ratings. How we score
- 1.On The Go Portable 16,000 Grain RV Double Water Softener with Salt Regeneration Kit and Carbon Filter9.2/10See on AmazonCheck price
- 2.On The Go OTG4-DBLSOFT Portable 16,000 Grain RV Water Softener8.6/10See on AmazonCheck price
- 3.VEVOR RV Water Softener, 16,000 Grain Portable Water Softener with 3/4" Brass Fittings and 42" Hose8.2/10See on AmazonCheck price
- 4.Essential RV Water Softener Portable 16,000 Grain with Custom Hose, 3/4" Fittings8.2/10See on AmazonCheck price
- 5.On The Go OTG3NTP3M Portable Water Softener7.5/10See on AmazonCheck price
- 6.Portable RV Water Softener5.0/10See on AmazonCheck price
#1On The Go's portable 16,000 grain RV double water softener with salt regeneration kit and carbon filter.
Fit for the job 10/10 · Features and specs 9/10 · Build and materials 9/10 · Value 8/10
- + Salt regeneration kit is included to restore softening
- + Carbon filter adds taste and odor reduction to soft water
- + Double softener design suits full-timers with high water use
- - Bundle is bulky to store in a small rig with limited bay space
- - Costs more than single softeners without filter extras
#2On The Go's OTG4-DBLSOFT portable 16,000 grain RV water softener for hard water campgrounds.
Fit for the job 9/10 · Features and specs 8/10 · Build and materials 9/10 · Value 8/10
- + 16,000 grain capacity lasts a long time between regenerations
- + Softer water protects water heaters and fixtures from scale
- + On The Go is a well-known name in portable RV softeners
- - Needs periodic salt regeneration, which takes time
- - Large tank adds weight and needs storage space
#3VEVOR's 16,000 grain portable RV water softener with 3/4" brass fittings and a 42" hose.
Fit for the job 8/10 · Features and specs 8/10 · Build and materials 8/10 · Value 9/10
- + Brass fittings resist corrosion better than plastic
- + 42" hose is included for connecting to the softener
- + 16,000 grain capacity suits long stays in hard water areas
- - VEVOR softener may be less refined than dedicated RV brands
- - Regeneration with salt is still required
#4Essential RV's portable 16,000 grain water softener with a custom hose and 3/4" fittings for campground hookups.
Fit for the job 8/10 · Features and specs 8/10 · Build and materials 8/10 · Value 9/10
- + Custom hose is included, so setup at the spigot is quick
- + 16,000 grain rating covers weeks of typical RV water use
- + Standard 3/4" fittings connect to common RV hoses
- - Salt regeneration is still needed as the resin gets used up
- - Less-known brand than On The Go for replacement parts
#5On The Go's OTG3NTP3M portable water softener, a compact softener for RV hard water protection.
Fit for the job 8/10 · Features and specs 6/10 · Build and materials 8/10 · Value 8/10
- + Compact size is easier to store than double softeners
- + On The Go softeners regenerate with ordinary table salt
- + Protects plumbing and fixtures from mineral buildup
- - Check the grain capacity before buying
- - Smaller units need regeneration more often
#6A portable water softener that connects between the spigot and RV to reduce scale and spotting.
Fit for the job 5/10 · Features and specs 4/10 · Build and materials 5/10 · Value 6/10
- + Portable softener design connects between spigot and RV
- + Softened water reduces spotting and scale on fixtures
- + Can extend water heater life in hard water regions
- - No grain capacity is listed, so performance cannot be compared
- - Vague listing gives no fittings, hose or regeneration details
Before you buy: trade-offs we flagged
No pick is perfect. These are the main compromises we noted for the top products in this guide, so you can check they will not matter for you.
- Bundle is bulky to store in a small rig with limited bay space (On The Go Portable 16,000 Grain RV Double...)
- Needs periodic salt regeneration, which takes time (On The Go OTG4-DBLSOFT Portable 16,000 Grain...)
- VEVOR softener may be less refined than dedicated RV brands (VEVOR RV Water Softener, 16,000 Grain...)
- Salt regeneration is still needed as the resin gets used up (Essential RV Water Softener Portable 16,000...)
- Check the grain capacity before buying (On The Go OTG3NTP3M Portable Water Softener)
- No grain capacity is listed, so performance cannot be compared (Portable RV Water Softener)
Frequently asked questions
›What is the best choice among rv water softeners?
On The Go Portable 16,000 Grain RV Double Water Softener with Salt Regeneration Kit and Carbon Filter is our top overall pick. On The Go's portable 16,000 grain RV double water softener with salt regeneration kit and carbon filter. It earns our score of 9.2/10, based on fit for the job, features, build and value.
›What is a good budget option?
On The Go OTG4-DBLSOFT Portable 16,000 Grain RV Water Softener is the strongest low-cost pick in this guide. On The Go's OTG4-DBLSOFT portable 16,000 grain RV water softener for hard water campgrounds.
›How much should I expect to spend?
Picks in this guide span See on Amazon price bands (roughly: $ = under $30, $$ = $30 to $100, $$$ = over $100). We never display exact prices because they change constantly, so the buttons above always show Amazon's current price.
›How were these products chosen?
We shortlist products that fit the job this guide solves and compare their published specifications, such as size, capacity, materials and what is included. Each pick gets an editorial score out of 10 for fit, features, build and value, and we write the pros and cons from those details. Our score is not an Amazon customer rating. We earn a commission if you buy through our links, which never affects the ranking.
RV Upgrade Hub independently selects every product; we may earn a commission from links above.
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