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WaterSentinel SF-20W Spotless Car Wash Inline Deionized Water Garden Hose Water Filter & Extension Adapter for RV, Boat, Marine, Motorcycle, Home, Windows, Spot Free Wash, Solar Panels

  • Based on 1,090 reviews
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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon

Arrives Monday, Sep 29
Order within 19 hours and 51 minutes
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Item Package Quantity: 1


Features

  • Heavy Duty Design: Proudly Made In The USA, brass crimped end to end, lead free, internal tight seal gasket. Reusable blue filter caps(end to end) to preserve resin for freshness. Braided and reinforced transparent flex hose extension.
  • Superior Filtration Technology: High quality filtration technology applied by a using sediment pack on inlet and outlet to reduce chlorine, dust, rust, sand and silt.
  • Special Formulated High Capacity DI Media: Using Premium Deionized media to dissolve ions for mineral free water and achieve glossy spot-free finish on all types of vehicles such as: RV's, boat, marine, motorcycle, solar panels and even your home's windows. Also prevents scale spots caused by hard water by removing residual sodium ions unlike other products. For best results it is recommended to wipe-off any excess of water and let air-dry in the sun.
  • Simple To Use: No bulky hardware, a compact plug & play design with no tools required for installation. Eliminates the need for large complicated systems. Use the Car Wash Filter and included Hose Extension right away. Fits standard 3/4" garden hose thread.

Brand: WaterSentinel


UPC:


Manufacturer: Aquamor, LLC


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 12 x 2.5 x 2.5 inches; 1.54 Pounds


Item model number ‏ : ‎ SF-20W


Date First Available ‏ : ‎ April 28, 2020


Manufacturer ‏ : ‎ Aquamor, LLC


Best Sellers Rank: #27,042 in Automotive (See Top 100 in Automotive) #33 in RV Freshwater Filtration Systems & Parts


#33 in RV Freshwater Filtration Systems & Parts:


Customer Reviews: 3.9 3.9 out of 5 stars 1,090 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 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.

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Top Amazon Reviews


  • The extra hose suck
So the product does real good as far as not leaving waterspots but the hose is not crimped correctly and leaks from every single connection point. Toss the little 12" hose extension in the trash and voila no more leaks. I just put the canister straight on the hose then the nozzle after it, works great ... show more
Reviewed in the United States on June 26, 2024 by Judith S. Shumway

  • Works Great!
This is the second one I bought. They have a finite use. They do exactly what they are supposed to do. De-ionize the car wash rinse water. After use I take my battery powered leaf blower to get rid of any remaining water residing in crevices. No more drying the cars with a chamois after rinsing.
Reviewed in the United States on June 7, 2025 by Media Man

  • Filter works as advertised.
The short bib hose is worthless. Leaks at all connection. The filter is great, both of my black vehicles look good and are spot free.
Reviewed in the United States on March 20, 2025 by Stephen M.

  • Does not work
This does not work at all. The hose was garbage leaked instantly. The filter did nothing, water spot still existed all over the car. Complete garbage.
Reviewed in the United States on July 27, 2025 by cd

  • Hose Extension Does Not Work
Filter seems to mostly prevent water spots when used to rinse my car after washing. But as others have stated, the included hose extension is junk. It sprays water like a shower head. 🚿
Reviewed in the United States on May 1, 2025 by Larry W

  • VERY helpful for washing cars!
Years ago, my parents surprised me by buying me a Mr. Clean AutoDry kit. It came with the water gun, soap and a couple of filters. I used that set up for about 10 years before randomly shelving it. One day I broke it out, saw I was out of filters, went to buy more..... and discovered the product line was discontinued. I refuse to pay scalpers that are selling filters for the water gun, so I got rid of the kit, to the dismay of myself and my family members, who all used to have me wash their vehicles for them. As the years have gone by, we just go to the car wash. However, with my father finishing work on his freshly restored 1968 Z/28 Chevrolet Camaro and driving it around, we again have a need for a lower pressure water cleaning method for the car as he rightfully refuses to hit the car with a high pressure washer or take it through an automated car wash. This inline filter seemed the best avenue to go on, as the Mr. Clean AutoDry line shows no sign of revival. And I am very pleased to announce that this filter works ALMOST as well as the AutoDry gun did! Recently, due to some garage work, I had to leave my car, a 2011 Mazda3, parked outside. A brief, heavy rainstorm left my car completely covered in hard water spots. So I connected this filter to the hose tap, connected a hose to the other end of the filter, and literally just rinsed my car off. No soap, no wipedown, no drying, save for a short drive afterwards. This cleaned most of the water spotting off my car. Some spotting remains, but given I didn't use soap or wipe the car down, I was impressed. Encouraged by this, my father rolled the Camaro out. The car's front end was plastered with insect remains and he wanted to wax the paint. With my father rinsing, soaping, wiping and re-rinsing and me drying, we were able to get his Camaro (which is painted black!) very well cleaned up, with only a few very slight hard water drop stains on the paint. Waxing and polishing easily removed the spots. A crucial detail I forgot to discuss is water hardness. It may just be where we live, but our garden tap water is VERY hard, to the point drinking from a hose is discouraged. In the days of using my Mr. Clean AutoDry gun, one filter would last one to three washes, depending on the size of vehicle I washed and how dirty the vehicle was. So for this filter to remove so much of the minerals and other particles from the water is very impressive, and my father and I are very pleased with the results on our respective cars. So, that's one feature that I can't comment on...yet. I don't know how long this filter will last, given the hardness of our water. And as water conservation is being enforced where I live right now, my father and I will likely limit the use of garden tap water to watering the lawn, and with this filter, for only washing his Camaro when needed. However, unless the filter gives up the ghost very soon, I'll gladly buy another one when this one is used up. ... show more
Reviewed in the United States on August 8, 2021 by Hawk eye

  • Works as promised.
The product itself works great, the little hose that comes with it? Not to much LOL! Just throw the little hose away and attach sprayer directly to this unit I have extremely hard water and this honestly made drying my car that much easier. Im sure if I didnt dry it I would have water spots regardless. Water leaves spots, period. But today I wasn't in a rush as per usual to get my car dried off immediately, I took my time and my car came out beautifully. I recommend this product100% but you do need to dry your car off for maximum results ... show more
Reviewed in the United States on September 5, 2025 by grandmahodie

  • Filter works hose bad
Filter works. does what it claims. Hose connection does not work, using tape helps but still leaks, connections threads are too wide and therefore leak,, did not use the hose connector
Reviewed in the United States on April 10, 2025 by Pod Fix

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