The smarter way to washer fluid

Refills that are easier on your wallet, your car, and the planet—because better shouldn’t be complicated.

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easy to use 👌 • works like a charm 👍 • no plastic • convenient • better for the planet 🌎

Why tablets? Here’s the deal:

Convenient

Tablets take up 1,500x less space than a traditional gallon. Store a year’s supply in your glovebox!

Cost Effective

Refill your washer fluid 4-5 times for the same price as one jug from the big brands

Plastic-Free

No plastic bottles, no plastic packaging, and no plastic shipping materials

Stop Paying for Water

Those jugs on the shelf and at the gas station? Mostly water. You can get that at home.

kemstone vs. the others

Let’s break it down—here’s how Kemstone stacks up against the traditional stuff and those Amazon bargain-bin tablets.

Kemstone tablets

✅ Compact and easy to Store

✅ As low as $1.25 per Refill

✅ Quick, easy refills

✅ 100% Plastic-Free

✅ Non-Hazardous

✅ Made in the USA

Traditional washer fluid

❌ Bulky space-waster

❌ Paying for water

❌ Messy to pour

❌ Adds to plastic pollution

❌ Contains toxic methanol

❌ $8 - $10 per refill

Other washer fluid tablets

❌ Wrapped & shipped in plastic packaging

❌ Low quality imported knock-offs

❌ Basic glass cleaner pretending to be washer fluid

❌ Leaves streaks & residue

Ditch the plastic

The other guys

Kemstone

Drag

100%

No-Nonsense Guarantee

Not happy with your Kemstone purchase? No problem—we’ll refund every penny, no hassle, no fuss.

5-Star Reviews

John S.

Finally Solved My Windshield Washer Fluid Hassle – A Game-Changer!

I hate storing gallon jugs of washer fluid, so I'll buy one, fill my reservoir, and then soon I run out, and the driver information display is nagging me about it being empty every day. I hate making the trip back to buy another gallon, so I go without for weeks. This product has solved all those problems!

Mary U.

Such a Money Saver

For about the price of a gallon of premix at the auto store, you can have FOUR gallons of windshield wash. With the pre-mix, you are paying for mostly WATER. Why not get the tablets, use your own water and save about 80%? AND it's easier to store these tablets! Just save an empty jug to mix your tablet and water in.

Joshua A.

Terrific Idea

Great idea! No longer need to carry a jug of washer fluid around with you. Just drop a tablet into the empty windshield washer reservoir and fill with water. The tablets dissolve quickly and do an excellent job of clearing the windshield.

Put refills on cruise control

Lock in savings (and do the planet a solid) when you subscribe for refills on your terms.

✓ Save up to 25%
✓ Delivered when you need it
✓ Skip, change, or cancel anytime
✓ No more running on empty

Our Mission

Eliminating plastic from car care

We’re on a mission to make sustainable car care a no-brainer. It starts with ditching single-use plastic from everything—our products, packaging, and even the shipping materials. Simple, effective, and built to actually make a difference.

Read Our Story

How it works

Drop kemstone

Drop 1 Kemstone directly into the washer fluid reservoir

Add water

Add up to 1 gallon of water

Wait

Kemstone fully dissolves within just a few minutes!

rock on!

Save some cash (and the planet) while making sure you never run dry—subscribe and get your refills delivered whenever, wherever you need ‘em.