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Fleck 5600 SXT Whole House Water Softener, 48,000 Grains, Black

  • Based on 369 reviews
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Availability: In Stock.
Fulfilled by Aplus Water LLC

Arrives Thursday, Oct 8
Order within 15 hours and 36 minutes
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Features

  • Digital Metered Control System: Fleck 5600 SXT On Demand Digital Metered Water Softener with advanced meter-based regeneration technology
  • High Capacity Resin: 48,000 Grain capacity with 1.5 cubic ft of High Capacity Resin Pre Loaded in the tank for efficient water softening
  • Complete System: Black Mineral tank, 1.5 cu ft High Capacity Resin, plastic bypass and 1" yoke, and a standard 14"x36" Brine Tank with safety float for overflow protection
  • Ion Exchange Process: Removes calcium and magnesium through ion exchange process to eliminate hard water and extend the life of plumbing and appliances

Description

Our DuraWater 1.5 cubic ft 48,000 Grain Water Softener provides your entire home with the soft water you are looking for. Our water softeners come fully loaded to not only save you the hassle of having to put in your own media, but to also cut down on the installation time. You will find our included fully programmable Fleck 5600 SXT metered paddle wheel control valve to be easy to navigate, and even easier to program to have your softener fully customized to fit your home's exact needs, helping you to save water and get the most efficient use out of your system. Whether you plan on hiring a plumber to install your system or you plan on doing everything on your own, we aim to make the installation process as easy as it can be for our customers. Included with our system: ***Drain line and connection hoses are not provided but can usually be found locally in the length needed for your installation location*** Please Note: This unit comes in two separate packages; One containing the mineral tank, and the other containing the brine tank with valve and fittings inside. Special Note- Due to manufacture availability Tank color may vary. Our mineral tanks ship fully loaded with resin already inside to make for an easier installation for you or your plumber. This unique brine tank comes standard with a safety float and all the necessary fittings for installation. Fleck 5600 SXT metered on demand fully programmable control valve. With 16 completely customizable settings, you are able to get the most efficient use out of your system and the best water quality as possible Our High Capacity resin is top of the line with a longer lifespan and greater hardness removal overall. Aplus Water LLC is fully endorsed by Pentair and has been a certified True Blue Dealer since 2018. Aplus Water LLC is proud to sell Pentair's great quality products. Our specialists can help with anything from installation questions to helping you program your valve to fit your home's exact needs in order to get the most efficient use out of your system and save you water in the long run. We love to help our customers and will be as friendly and helpful as possible throughout the entire life of your unit! Please don't hesitate reach out to us with any questions you may have about your system!

Brand: DuraWater


Special Feature: Programmable


Product Dimensions: 15"L x 28"W x 62"H


Material: Polypropylene


Capacity: 1.5 cubic feet


Included Components: complete system


Package Information: Tank


Installation Type: Freestanding


Purification Method: Ion Exchange


Power Source: Manual/Gravity-fed


Other Special Features of the Product: Programmable


Container Type: Tank


Installation Type: Freestanding


Purification Method: Ion Exchange


Power Source: Manual/Gravity-fed


Supported Water TDS Level Maximum (PPM): 350


Item Dimensions L x W x H: 15"L x 28"W x 62"H


Capacity: 1.5 cubic feet


Item Weight: 53 pounds


Material Type: Polypropylene


Brand Name: DuraWater


Included Components: complete system


Model Name: 56-SXT-48K-M


Model Number: 56-SXT-48K-M


UPC: 684191963308


Manufacturer: Fleck


Item Highlight: Ships Loaded With Resin In Tank


Number of Items: 1


Unit Count: 1 Count


Item Type Name: 48,000 grain softener


Part Number: 56-SXT-48K-M


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 8

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.

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Top Amazon Reviews


  • Good System and Easy DIY Installation
Purchased this system to replace a 20 year-old Fleck/Pentair 7000 system that had performed well and was easy to service. Because I was familiar with the Fleck water softener products and because the plumbing connections were the same as my old system, installation, programming, and start-up was straight-forward and went flawlessly. The system arrived as scheduled (well packaged with no missing or broken parts). Note that you do need to purchase some additional parts (drain-line and clamp, silicone o-ring grease, teflon tape) but these are identified in both the instructions and videos along with specifying the necessary tools needed. Working by myself, I had it installed and running the next day. Removal of the old system and installation (including programming) took me less than 3 hours. The water was shut-off to the house less than 10 minutes while I removed the old system and connected the new system to the house plumbing. The included instructions plus the seller produced videos helped a great deal. Note that there are some minor differences between what the written instructions say vs what the videos show. When those differences occurred, I followed the written instructions. Once everything was installed and programmed, I performed the pre-start-up tasks (these are important and are well described in the instructions/videos) and I put the unit into service for an initial recharge (this takes about 90 minutes). The system performed flawlessly. Hopefully, I will get many years of service from this system as I did with my old Fleck system that this replaced. ... show more
Reviewed in the United States on April 18, 2026 by wsotos

  • Easy to install, then just enjoy the water
My family had a 40-year-old Culligan water softener that was still working but it exhausted the resin. I have put new resin in before but recommended to my family replacing it since parts haven't been made for that on in a decade maybe more. I was a Culligan service repairman for many years so when I started looking, I wanted a Flech control body which is very dependable, and 1-1/2 cubic foot unit with a meter. When I found this one it was highly recommended in the reviews and priced very well. When I ordered it, it comes with an adapter for 1" plumbing. I needed 3/4" so I place an extra order to buy the correct adapter. The company reached out to me and told me if I cancelled the extra order, they would remove the 1" and put in a 3/4" at no extra charge. When it arrived, it was very well packaged, it had the correct adapter. Installing it was easy. It was missing a fitting, I could have missed placed it, it appeared to be a standard 1/2" threaded fitting. I called the company AND A PERSON ANSWERED THE PHONE, I was shocked but very happy. She said they could overnight it but yes it was a standard fitting, so I just went to the hardware store and bought it. Programming was very easy, I had 1 question and again a person answered the phone, quickly answered the question. It has been in about a month, and everything is great. THANK YOU, THANK YOU ... show more
Reviewed in the United States on October 13, 2024 by Ceo

  • Works great and I do not have to worry about calcium buildup in the water heater.
This is the second Fleck 5600 that I have installed. The first one I installed in a previous house and it never caused me any grief. Just follow the programming instructions and it works. A 48,000 grain unit is overkill for my 2 person family so I programed it as a 32,000 grain unit. AI can give you instructions as to how to do that. ... show more
Reviewed in the United States on September 8, 2026 by Hank

  • Love this softener
I had a Kenmore survey that went out, replaced it with this. I'm a jack of all trades, master of none, and this felt pretty easy. Took me about an hour to install the new lines, put this together, then set up. The manual that comes with it is set up kinda dummy proof, but its only going to get you in the ballpark, you'll need to know your water levels to get it dialed in. I have a friend who installs these and the settings he gave me were not too far off. The standard setup fills the tank much more than I'm used to seeing. Refill is on a timer and fill flow is pretty fast, so I had to adjust that down so that it's not filling too high. Our water is next level soft now, didn't realize how ineffective y last softener was until now. Also love how these are so easy to rebuild and replace instead of buying a whole new all in one system you get in retail stores. Can't sing the praises of this softener enough. ... show more
Reviewed in the United States on November 12, 2024 by Erik Northern

  • Works well, valve showed "Er 0" after six months, seller sent replacement promptly and all is good
I paid a local plumber to install it for us, and it started out great. The water has a very slight salty taste and consumes about one 40lbs salt crystal bag every six weeks. After six months the unit stopped working and flashed "Err 0" when trying to run a regen cycle. After power cycling it started up okay before going back to "Err 0". I called the Fleck/Pentair customer service number in the warranty book and was told I need to order a new piston and valve spacer which are "wear items" not covered under warranty. UPDATE 6/28/22: Seller Aplus Water LLC were incredibly helpful, and sent a replacement valve at no cost. They sent a return shipping label for the failed valve so they can inspect with the manufacturer. They sent a link to an instructional video they had made, and with that I was able to replace the value in about an hour. It is once again working perfectly. Thank you Heather at APlus Water LLC for resolving this promptly and easily! We are again very happy with our purchase. ... show more
Reviewed in the United States on June 15, 2022 by George

  • Great, cheap and easy to set up
Great, cheap and easy to set up
Reviewed in the United States on May 9, 2026 by Amazon Customer

  • They are as helpful as they say could not be more happy with them.
I haven't used my signed yet there was a small problem. I contacted A plus water the vender Jenna was as pleasant as could be and has initiated the process to fix the problem. Thanks so much to A plus for not making me jump through hoops.
Reviewed in the United States on April 27, 2026 by Mark D

  • Should have listened to the pros a long time ago
Went through more softeners from big box stores than I care to admit. They all were flakey - worked for a while, then had crazy stuff go wrong. Finally took the pro’s advice and went for a Fleck. Delivery went fine, which worried me but everything was packed well to be delivered by UPS in two boxes. Instructions were detailed enough and system has been working flawlessly for several months. Salt consumption is lower and steadier than the big box units. The two-unit footprint does take a little more room, but not a problem. I finally don’t have to think about it at all between salt fills, which is every three months or so. ... show more
Reviewed in the United States on November 24, 2025 by WWWWoodchuck

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