On The Go OTG4-VM-DBLSOFT Portable Compact Double Standard 16,000 Grain Water Softener with Drinking Water Safe Brass Fittings (NOT made in China, assembled by U.S. Workers in Indiana
Condition: New
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Availability:
In Stock.
Arrives
Sunday, Mar 29
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Features
- Breaking the head changing the fittings to install into a shower is not covered. ASK us questions if this is your application. Not for Showers
Manufacturer: On The Go
Brand: On The Go
Item Weight: 34.8 pounds
Product Dimensions: 10 x 10 x 24 inches
Date First Available: March 9, 2020
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Mar 29
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Outstanding product. Outstanding results. From just about the hardest of hard water to soft and smooth. My beard has not stopped thanking me after my first shower. Dishes are clean. Sink stays polished. It’s soooo so easy to set up. As for it durability. It looks like it could take a bump or two. Moving it around. It’s not light but very manageable for the double standards. Rope handle makes it easier. As for regeneration, I’m not there yet, but I installed a gallon counter to see how far it gets. By the gallons not by the days. Although average should provide a pretty accurate look at it overall performance. Honestly should have had 10 years ago. New tankless water heater required it. Well if you want it to function properly without buildup. Overall I looked at most of them. This one was worth the extra coin and shipping was fast and free. The best way. Press buy! It will physically change your life. posted. 10/6/25 Update to be posted upon registration. With stats.
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Reviewed in the United States on October 7, 2025 by Biz Trailer
Been using this in our RV throughout the south and west for a couple of years. Having the brass fittings gives piece of mind for durability and minimal leaks at fittings. Works great on all water so far. Even works in Yuma AZ where the hardness is around 50 gpg. Easy to set up and easy to recharge. And contrary to all the whiners out there, it’s not the softener’s fault when you have extremely hard water and you quickly have to recharge the unit. Read the info from water quality experts. Resin is resin in general (well, there are 2 kinds, but this has the standard c-100e). If you have really really hard water like Yuma, you are going to have to recharge often. It’s simple math. The unit can remove 16,000 grains. If your current water has 50 gpg to be removed, 16k divided by 50 is 320 gallons of treated water. That’s all you are going to get out of a recharge. For a hour old of 2 with washer and dishwasher, that’s about 3 weeks for us. If you are using 300 gal per week, plan to recharge weekly. If you need more capacity, no other 16k grain unit is any better, you need a larger unit (or 2 of these in series). And, if, like Yuma, the water tastes salty even after treatment, it’s not the softener’s fault, again, it’s the specific minerals in the source water…no other softener is going to do better (maybe reverse osmosis…but I’m told those use over 9x the water you get out of them to recharge which is waaaay too much water wasted to be of any real use in an RV system). In short, these are quite nice softeners…just don’t blame them if your source water is way beyond normal hardness and you have to recharge frequently…it’s simply the amount of resin that fits in these small tanks (and the hardness of the source water) that drives the recharge frequency.
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Reviewed in the United States on December 14, 2025 by Fred Berfel
I absolutely love this water softener! I’m used to soft water at home and I purchased this for our Fifth wheel camper! My husband thought I was crazy until he took a shower! Now campground water is no longer harsh on the skin and hair! Looooovvveee IT! So easy to use and set up! And easy to regenerate. So far the quality is worth the price! It is a little bulky but we just set it in the back of the truck bed in front of the hitch for travel.
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Reviewed in the United States on December 8, 2025 by D. Keithley
Awesome portable softener system. I use it on my motorhome when connecting to campground water systems. It really produces soft water.
Reviewed in the United States on August 28, 2025 by Flips
One of the best buys ever for my toyhauler! We are spending the summer traveling and this, while a heavier accessory, has made possible to have soft water in my camper. It prevents build up on all my fixtures and in my tanks, is amazingly easy to set up and runs off table salt! We combined it with an in line filter and we have great water everywhere we go now.
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Reviewed in the United States on July 15, 2025 by Uwish
I have 2 of these. Once filters the water to my RV, and a second one filters the water coming into my shed where I have a washing machine. Both work very well, but because my water is very hard I never get the life out of each regeneration that it says I should. I have to add usually 3 cans of salt, not the recommended 2, and have to do it more frequently than recommended. All in all, it does what it's supposed to do but your mileage may vary depending on how bad your water coming in is.
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Reviewed in the United States on May 26, 2021 by Chad Grenier
Nice system. I used it in the shower of my rental, the improvements of the water quality is significant. Update after 8 month of usage for people who also experienced the shorter usage length: Like some other people in the reviews, I also experienced the shorter length between each regeneration. The water in my area is super hard, and I use it for shower every day. So from 6 weeks to 4 weeks to 2 weeks, the usage length got bad in 3 cycles pretty quickly after each general regenerations. Then I found the "special regen" page at On The Go official website. Followed the special regen instructions last October , and use 3 bottles of salt with recommended "water softener cleaner" in the last 3 regeneration process, the length between stays at about 5 weeks pretty consistently so far. A little tip that I am not sure whether helped, is after put the salt in, I added some warm water, put the cup back on, and shake the tank for a little while to make sure no large salt clusters.
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Reviewed in the United States on July 3, 2025 by Molly Molly
I cannot say enough good things about this. I don't have a water softener at my home but after buying a new RV I wanted to insure we had good water quality when traveling to different parks. Let me tell you. The difference is night and day. Before setting this up I thought the water where we were staying was good until I hooked this up. I would never not have one on my RV after using this one. The set up was a breeze and came with all the appropriate fittings and O rings. The provided tester was spot on when comparing it to other testers
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Reviewed in the United States on April 1, 2025 by CM