---
product_id: 642493601
title: "- Spotless Water Systems - DIW-20, Simple Window, Solar Panel, RV & Car Wash System, Works for All Vehicles, Motorcycles, Bikes, Boats, Planes, Yachts, Towel Drying Eliminated"
brand: "cr spotless water systems"
price: "KD 222.43"
currency: KWD
in_stock: true
reviews_count: 6
category: "Cr Spotless Water Systems"
url: https://www.desertcart.com.kw/products/642493601-spotless-water-systems-diw-20-simple-window-solar-panel-rv
store_origin: KW
region: Kuwait
---

# 300 gallons mineral-free water Battery-powered TDS purity meter Replaceable 20-inch de-ionizing cartridges - Spotless Water Systems - DIW-20, Simple Window, Solar Panel, RV & Car Wash System, Works for All Vehicles, Motorcycles, Bikes, Boats, Planes, Yachts, Towel Drying Eliminated

**Brand:** cr spotless water systems
**Price:** KD 222.43
**Availability:** ✅ In Stock

## Summary

> 💦 Wash smarter, shine brighter—spotless results without the hassle!

## Quick Answers

- **What is this?** - Spotless Water Systems - DIW-20, Simple Window, Solar Panel, RV & Car Wash System, Works for All Vehicles, Motorcycles, Bikes, Boats, Planes, Yachts, Towel Drying Eliminated by cr spotless water systems
- **How much does it cost?** KD 222.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/642493601-spotless-water-systems-diw-20-simple-window-solar-panel-rv)

## Best For

- cr spotless water systems enthusiasts

## Why This Product

- Trusted cr spotless water systems brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Spotless Shine, Zero Effort:** Eliminate hard water spots by simply washing and air drying—no towels needed.
- • **Cost-Effective & Eco-Friendly:** Save time, money, and water with replaceable resin cartridges delivering up to 1000 gallons each.
- • **Pro-Grade Deionization at Home:** Access the same mineral-free water tech used by detailers and solar panel pros.
- • **Smart Water Quality Monitoring:** Built-in battery-operated TDS meter ensures every rinse is perfectly pure.
- • **Compact, Wall-Mounted Powerhouse:** Sleek, rust-resistant design fits anywhere and keeps your space clutter-free.

## Overview

The CR Spotless DIW-20 is a compact, wall-mounted de-ionizing water system designed to remove minerals from your water supply, producing up to 300 gallons of spot-free water per cartridge. Ideal for cars, RVs, boats, solar panels, and windows, it eliminates hard water spots by enabling air drying without residue. Featuring replaceable 20-inch resin cartridges, a battery-powered TDS meter for water purity monitoring, and a durable powder-coated frame, this system brings professional-grade water treatment to your home with ease and efficiency.

## Description

Hard water spots can destroy your vehicle’s finish. We know. That’s why we created a de-ionizing system that takes out all of the minerals in your water so you can just WASH, RINSE, and WALK AWAY! With a CR Spotless Water System, you can let your car air dry and not leave any spots behind. Besides cars, de-ionized water is perfect for washing and SPOT-FREE rinsing of your RV, boat, golf cart, motorcycle, and house windows, too! De-ionized water is the secret sauce that detailers, car washes, and window cleaners have used for decades. CR Spotless was the first to make the same technology available to homeowners in an affordable, compact, and portable system. Work smarter, not harder and spend less time and money to get the same professional looking results. The DIW-20 comes complete with 2 20 inch wall mounted cartridges containing a mixed bed of de-ionizing resin that will produce approximately 200 gallons of mineral-free water based on an average TDS level of 200 ppm. Depending on the quality of the water where you live, you can get between 75 and 1000 gallons of deionized water from one resin cartridge. All CR Spotless Water Systems also include a battery operated TDS meter that will measure the quality of the water coming out of the system. Includes two 20-inch wall mounted de-ionizing resin cartridges, Stainless Steel input Line, filter wrench, Spray nozzle, and battery operated water Purity Indicator - 1 Year

Review: If you have $400 burning a hole in your pocket, this is the Deionizing System for you - UPDATE: After 3 months of use my TDS meter has gone from 000 to 007. I do not have a good idea of how many washes I have on the first two cartridges. I have ordered 4 more bags of resin which I think gives me 2 refills. I've also ordered an inline gallon meter so I can see exactly how many gallons between resin changes. Best I can estimate is I have about 20 car washes (2 cars) and 4 Large motorhome washes. Im assuming I'll get another couple of washes in, so maybe 30 uses and it's about $100 per recharge using CR Spotless resin. So maybe $3 per use? I'Ve been using the DI rinse pretty liberally so far. I think I'll set up a second hose for the initial wash and soap rinse off and just use the DI for a final rinse. Also need to make sure I'm not getting alge growth. I have 2 cars and a motorhome and I like washing them. They are all dark, metallic colors and I don't have a nice shady spot to wash them in. Being in Florida the sun can dry the car surface way before you can dry it by hand, leaving hard water spots that are make the car look worse than when you started. I'd been looking into building my own DI system for a while, but my time is limited and I could not find a good DYI project to copy. Another problem is that DI systems are lost in the noise of all the BS surrounding home water treatment systems which I mostly view as a scams. As usual, I figured the only way to know for sure would be to buy one, try it out and if it just doesn't work, send it back. I ordered the CR systems (the large one) which uses mixed bead deionizing cartridges. The cartridges are replaceable, or you can buy new mixed bead resin for around $40/cartridge. $80 sounds like a lot depending on how often you have to recharge your system and since I just got mine I have no idea how long these will last. Let me get the punch line out first. The system works great! I washed my Honda and Lexus and left them in the morning sun to dry. No spots at all. I washed the fender of my son's truck (dark charcoal) and rinsed it with the CR and let it dry. Then I sprayed about half of the area with normal untreated water and let that dry. See the attached picture for the results. The photo isn't great, but you can see on the left side obvious spots and nothing on the right side. The question of course is how long the systems will last before needing new resin beads. The manual says you should get between 800 and 1300 gallons per charge. We'll see. Another problem I've read about is that if you leave water in the system too long (I have no idea what "too long" means, algae grows and ruins the resin beads). Since I wash cars once a week, I'm hoping this won't be a problem. I also think the life of the beads has to do with how hard you water is and what types of contaminants are in there. I've just installed a new water softener for the house, so I'm assuming this will help increase the life between resin changes. As far as the design and construction of the system itself I'd give the manufacture an A all the way around. The unit is on a nicely built tube cart with wheels. It seems to be very well balanced and I don't think it will tip over very easily. All the parts appear well engineered and built well. The only problem is a slight leak at where you have to install the hose inlets and outlets. The manual says to put at least two wraps of teflon tape on the threads (tape is supplied, and I put 3 wraps on). But water still dribbles out of the connection a bit. I'm going to take it apart and put another wrap or two of teflon and try it again. Obviously this is an "out of the box" review with one day's use on it. I will update as I go.
Review: Great for Hot & Sunny Home/Auto Environment's - Living in a dry/hot environment, I struggled with water spots constantly drying on my car and windows before I could even reach for a towel. This water filter has been a game-changer, eliminating that issue entirely. It leaves my car and windows with a flawless, streak-free shine after air drying, saving me significant time and frustration. It's a user-friendly tool that has drastically simplified my cleaning routine. I highly recommend the wheeled version, as it can get heavy when filled with water. Professional-level results every time.

## Features

- Hard water spots can destroy your vehicle’s finish, reduce efficiency with solar panels, and create a dirty appearance on windows. We know. That’s why we created a de-ionizing system that takes out all of the minerals in your water so you can just WASH, RINSE, and WALK AWAY!
- With a CR Spotless Water System, you can let your vehicle, windows, and solar panels, air dry and not leave any spots behind. De-ionized water is the secret sauce that detailers, car washes, and solar / window cleaners have used for decades.
- CR Spotless was the first to make the same technology available to homeowners in an affordable, compact, and portable system. Work smarter, not harder and spend less time and money to get the same professional looking results.
- The DIW-20 provides approximately 300 gallons of mineral-free, de-ionized water based on your water input quality. It consists of two 20 inch de-ionization housings that feature replaceable (or refillable) cartridges that simply slide into the watertight tubes.
- The entire unit is mounted on a powder coated, rust resistant wall mount that makes it convenient to mount in your desired location. Ships with all the parts and accessories needed to start rocking and rolling with all the spare time created by your CR Spotless deionized water system.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002LOJRKC |
| Batteries | 2 LR44 batteries required. (included) |
| Best Sellers Rank | #34,056 in Automotive ( See Top 100 in Automotive ) #32 in Car Washing Applicators |
| Brand | CR Spotless Water Systems |
| Date First Available | August 16, 2009 |
| Global Trade Identification Number | 00810102010056 |
| Installation Type | Wall Mounted |
| Is Discontinued By Manufacturer | No |
| Item Weight | 27 pounds |
| Item model number | DIW-20 |
| Manufacturer | CR Spotless |
| Maximum Flow Rate | 2.5 Gallons Per Minute |
| Model Name | DIW-20 |
| Package Information | Cartridge |
| Power Source | Battery Powered |
| Product Dimensions | 15"L x 15"W x 25"H |
| Special Feature | Chlorine Reduction |
| Supported Water TDS Level Maximum (PPM) | 300 |
| UPC | 810102010056 619730710877 |

## Product Details

- **Brand:** CR Spotless Water Systems
- **Capacity:** 300 Gallons
- **Included Components:** 20" wall system, TDS meter, stainless hose, wrench, nozzle, 2 filter cartridges
- **Installation Type:** Wall Mounted
- **Material:** Stainless Steel
- **Package Information:** Cartridge
- **Power Source:** Battery Powered
- **Product Dimensions:** 15"L x 15"W x 25"H
- **Purification Method:** Deionization
- **Special Feature:** Chlorine Reduction

## Images

![- Spotless Water Systems - DIW-20, Simple Window, Solar Panel, RV & Car Wash System, Works for All Vehicles, Motorcycles, Bikes, Boats, Planes, Yachts, Towel Drying Eliminated - Image 1](https://m.media-amazon.com/images/I/610ruOmvXXL.jpg)

## Questions & Answers

**Q: Can it be used with a pressure washer?**
A: The DIC-20 can be used with a pressure washer that has a water flow rate of 2.5 gpm or less.

**Q: Can the resin be replaced by owner with bulk resin or do you need to replace the whole canister?    Do you sell bulk resin?**
A: Yes, the owner can replace their resin with bulk resin. We sell bags of resin like the R2-20 for a single exchange or we sell an RD-1 which will provide 3 exchanges. You can find these products on our website, crspotless.com.

**Q: ¿Cuantos galones puenden filtrar los cartuchos sin requerir cambio? cambio ?**
A: Con un estimado nivel de 300 galones por los doas cartuchos. Pero eso va a depender de que tan sucia esta el agua de su ciudad/casa.

**Q: What is the pressure coming out of the unit?  Can it be used to wash & rinse the vehicle or just to gently rinse?**
A: HI,

The pressure should be maintained at 2.5 gpm or less.  We recommend using it for just the final rinse to get the most life out of your resin. 

Spotless Water

## Customer Reviews

### ⭐⭐⭐⭐⭐ If you have $400 burning a hole in your pocket, this is the Deionizing System for you
*by B***B on November 15, 2015*

UPDATE: After 3 months of use my TDS meter has gone from 000 to 007. I do not have a good idea of how many washes I have on the first two cartridges. I have ordered 4 more bags of resin which I think gives me 2 refills. I've also ordered an inline gallon meter so I can see exactly how many gallons between resin changes. Best I can estimate is I have about 20 car washes (2 cars) and 4 Large motorhome washes. Im assuming I'll get another couple of washes in, so maybe 30 uses and it's about $100 per recharge using CR Spotless resin. So maybe $3 per use? I'Ve been using the DI rinse pretty liberally so far. I think I'll set up a second hose for the initial wash and soap rinse off and just use the DI for a final rinse. Also need to make sure I'm not getting alge growth. I have 2 cars and a motorhome and I like washing them. They are all dark, metallic colors and I don't have a nice shady spot to wash them in. Being in Florida the sun can dry the car surface way before you can dry it by hand, leaving hard water spots that are make the car look worse than when you started. I'd been looking into building my own DI system for a while, but my time is limited and I could not find a good DYI project to copy. Another problem is that DI systems are lost in the noise of all the BS surrounding home water treatment systems which I mostly view as a scams. As usual, I figured the only way to know for sure would be to buy one, try it out and if it just doesn't work, send it back. I ordered the CR systems (the large one) which uses mixed bead deionizing cartridges. The cartridges are replaceable, or you can buy new mixed bead resin for around $40/cartridge. $80 sounds like a lot depending on how often you have to recharge your system and since I just got mine I have no idea how long these will last. Let me get the punch line out first. The system works great! I washed my Honda and Lexus and left them in the morning sun to dry. No spots at all. I washed the fender of my son's truck (dark charcoal) and rinsed it with the CR and let it dry. Then I sprayed about half of the area with normal untreated water and let that dry. See the attached picture for the results. The photo isn't great, but you can see on the left side obvious spots and nothing on the right side. The question of course is how long the systems will last before needing new resin beads. The manual says you should get between 800 and 1300 gallons per charge. We'll see. Another problem I've read about is that if you leave water in the system too long (I have no idea what "too long" means, algae grows and ruins the resin beads). Since I wash cars once a week, I'm hoping this won't be a problem. I also think the life of the beads has to do with how hard you water is and what types of contaminants are in there. I've just installed a new water softener for the house, so I'm assuming this will help increase the life between resin changes. As far as the design and construction of the system itself I'd give the manufacture an A all the way around. The unit is on a nicely built tube cart with wheels. It seems to be very well balanced and I don't think it will tip over very easily. All the parts appear well engineered and built well. The only problem is a slight leak at where you have to install the hose inlets and outlets. The manual says to put at least two wraps of teflon tape on the threads (tape is supplied, and I put 3 wraps on). But water still dribbles out of the connection a bit. I'm going to take it apart and put another wrap or two of teflon and try it again. Obviously this is an "out of the box" review with one day's use on it. I will update as I go.

### ⭐⭐⭐⭐⭐ Great for Hot & Sunny Home/Auto Environment's
*by M***M on May 31, 2024*

Living in a dry/hot environment, I struggled with water spots constantly drying on my car and windows before I could even reach for a towel. This water filter has been a game-changer, eliminating that issue entirely. It leaves my car and windows with a flawless, streak-free shine after air drying, saving me significant time and frustration. It's a user-friendly tool that has drastically simplified my cleaning routine. I highly recommend the wheeled version, as it can get heavy when filled with water. Professional-level results every time.

### ⭐⭐⭐⭐⭐ here in the Pacific NW (Washington State) we have calcium and lime in our city water that leaves horrible hard water spots that
*by R***. on October 25, 2016*

Works exactly as advertised. Water quality (the amount of minerals in your water the filter has to remove) varies greatly around the USA, here in the Pacific NW (Washington State) we have calcium and lime in our city water that leaves horrible hard water spots that are very difficult to remove after they dry. So at a minimum you can't wash your vehicle when its warm out, certainly not in direct sunlight. Even in the shade its a race to try to towel dry before the spots form and honestly took all the enjoyment out of washing your vehicle. Then due to back and hip issues it became pretty much impossible to towel dry so I purchased a CR Spotless system. Wow it works just like they said, wash and rinse in full sunlight then just walk away and let it air dry, ZERO spots. I did adjust my water pressure to about 2 gallons flow per minute. Just timed how long it took to fill up a gallon jug, adjusted my faucet to fill it in 30 seconds. This is more than enough pressure to wash and rinse a vehicle, even thought I have a pressure washer I found no reason to use it. I did chuck the included cheap hose nozzle in the trash and purchased a nice one at my Wilco farm store. I have washed my 2016 BMW X5 xDrive 35i 4 times now, the mineralization meter still reads zero, no water spots. NOTE: My brother recently purchased one of these units to remove the minerals from the water he was mixing with coolant for his $200k Mori Seki CNC lathe.

## Frequently Bought Together

- Spotless Water Systems - DIW-20, Simple Window, Solar Panel, RV & Car Wash System, Works for All Vehicles, Motorcycles, Bikes, Boats, Planes, Yachts, Towel Drying Eliminated
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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-01-25*