OTG4-DBLSOFT-Portable 16,000 Grain RV Water Softener (NOT made in China, assembled by U.S. Workers in Indiana)
Condition: New
Buy Now, Pay Later
As low as
$34.50
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Free shipping on this product
30-day returns
Learn more
30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Jun 28 – Jun 30
Features
- The Double Standard Softener & Conditioner produces twice the gallons compared to the standard model and is the largest compact RV softener on the market.
- Built for the owner of any RV/Marine model, this 16,000 grain unit is a perfect fit and supplies approx. 40% more soft water than any other unit on the market. It simply regenerates with 2 boxes of common table salt in less than 30 minutes and provides the owner with soft water up to 1600 gallons or up to 40 days.
- Its compact, space-saver design allows it to be installed in the tightest places. It will allow high flow rates with very low pressure drop.
- Its unique features includes easy to carry handle on top, large mouth opening for easy salt addition, high grade premium resin, travel friendly option of cap & plug to prevent leakage and is built for quick & simple regeneration.
- It utilizes a standard garden hose connection between park faucet and your RV/Marine, requires NO tools or electricity and its compact design 22H x 9.50dia. can be easily stored in your storage bay or dock side locker.
- Movable base to be level on uneven ground
- Capacity of a Water Softener How many gallons a softener will approximately make depends on the hardness of the water source and your water usage. To figure out the approximate capacity of your unit, take the grains of the unit (Standard 8,000/Double 16,000) and divide that by the grains per gallon (GPG) of the water source. Double Standard Softener 16,000 / 11 GPG = 1,454 gallons 16,000 / 58 GPG= 275 gallons
- 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
Brand: On The Go
Item Form: rv water softener, portable water softener, 16,000 grain water softener
Unit Count: 368 Ounce
Number of Items: 1
Scent: Water
Brand Name: On The Go
Item Form: rv water softener, portable water softener, 16,000 grain water softener
Number of Items: 1
Global Trade Identification Number: 30
Manufacturer: On The Go
Part Number: OTG4-DBLSOFT
Unit Count: 368 Ounce
Item Weight: 32 Pounds
Package Size Name: Single
Scent: Water
Product Benefits: Softening
Material Features: high grade premium resin
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jun 28 – Jun 30
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Great upgrade to my boat. I have been using this for two seasons now and love having soft water on the boat. It makes cleaning the boat way better because you avoid most of the water spots. Trusted product that's US Made in Indiana.
Reviewed in the United States on October 20, 2025 by Rock'n Rod
We are at a campsite in North Central Washington. The water is very hard. It tested the highest on the test strip I flushed the tank out per instructions, hooked it to my motorhome, waited one day to flush all the lines out in the motorhome tested the water once again. It was the lowest on the test strip. I am very, very pleased with the result! I only wish I had done this sooner.
...
show more
Reviewed in the United States on May 20, 2026 by Becky Graham
Great water softener! Easy to use and makes water softer which saves money on laundry/dish/personal soap. Also the softener gives you healthy skin. This is the second unit we have purchased…the first model cracked at the top screw mechanism after 3 years of use.
Reviewed in the United States on April 2, 2026 by Sandra Juneebug
I guess it works ,I had to use it temporarily for one shower to bring down hard water in a house until I can afford a whole house system ,everything is sealed and runs well ,so I put the wedduo filter on to protect the on the go ,and the shower handle has a filter and threw all that the tds meter I have says the hard water is 524 sometime 380 ,my meter said 700 before the system and the strips before the system tested in the purple 1000 range ,this is in Oklahoma city ,after the filter the strips that came with it says like 40 like it's clean but the tds tester says 524 so I don't know the tds meter on spring water no minerals test 0,23 but I have piece of mind until next year
...
show more
Reviewed in the United States on April 29, 2026 Reviewed in the United States on April 29, 2026 by Almostahero
Works very well for hot tub filling. Water tests soft. Plug and play friendly. Included hoses needs to be longer. Also it is difficult screwing input hose on as connection does not turn, so you are literally twisting the hose to go on and can't get tight. Very heavy.
Reviewed in the United States on August 29, 2025 by Amazon Customer
Renting for the first time and live in an area with extremely hard water and I did not want to put in a filtration system for a house I did not own. I found out about this via a YouTube video by the water filter guru guy and he was spot on. I have this hooked up in my main shower and it has made the water feel great - silky and soft. The test strips show evident reduction in hard water levels going from 10-11 to a 1-2. My skin has definitely improved since I put this in 3 months ago but I noticed changes within weeks. Very easy to look after, drain and do a regeneration. I love the fact that it takes salt you can buy in you local supermarket and it's life cycle last years if you take care of it.
...
show more
Reviewed in the United States on December 13, 2025 by Keesha
I researched water softeners for my new to me RV, 2024 Alliance Paradigm. I'm a water snob. The shipping was fast, it's made in the USA, and the price was great. Very easy to set-up. It is portable but heavy at the same time. First water test was great. But the proof was in the hair after my shower. Made such a big difference already. And, I want to take care of the plumbing in this RV. Hard water is a nemesis, on every level.
...
show more
Reviewed in the United States on November 4, 2025 by Deborah G.
Love this portable water softener. We purchased it for our camper, and recharge it before each trip. Depending on the hardness of the water, you may get the a 4 or 5 day camping trip out of it, with taking daily showers, washing dishes, drinking, cooking, making ice, and lots of coffee (Yes, we have an additional filtration system before the water goes through the softener), or you may only get a couple days out of it before recharging is needed, but that’s not a problem with the softener, it’s the water it’s having to soften. Typically we’re probably getting between 150 to 250 gallons of softened water before recharging is necessary. Recharging is time consuming, but not difficult by any means. I love that our sinks and toilet no longer turns rust orange after just a day of using hard campground water. Great quality, and compact enough to fit in the camper pass-through stowage compartment.
...
show more
Reviewed in the United States on November 8, 2025 by KenM