40 windows? The size of the 40 Windows or sq ft of the windows? Thanks.

Each 4 oz. packet will clean 20 window for Full Crystal and 2,000 sq feet for Full Exterior. For the 1lb package it would be 80 windows and 8,000 sq feet.

I only have two small windows that need cleaning. How much of the crystals should I put in a 32 oz spray bottle?

I am not sure but I filled the container & did 6 windows with plenty left which I can use later...not a problem to store so I am ready to use the rest of the solution when I do the rest of my windows...I do small jobs to avoid getting too tired ....hope this helps you :-)

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Full Crystal Window Cleaner Refill, 2 x 4oz Powder, Cleans Up to 40 Windows

Product ID: 107520183

Details

Brand
Full Crystal
Item Form
Powder
Scent
Unscented
Specific Uses For Product
Windows Doors
Material Feature
Non-Toxic

🏠Safe for plants & outdoor surfaces

💧Cleans up to 40 windows

📏Reaches up to 27 feet high

S$33

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Description

✨ Elevate your curb appeal with effortless sparkle! ✨

ONE STEP WONDER - Engineered for simplicity—spray, rinse, and let dry naturally for a quick, hassle-free cleaning routine.
DOUBLE THE POWER - Two 4 oz. concentrate packets deliver enough solution to clean up to 40 exterior windows—value meets performance.
ECO SAFE FORMULA - Non-toxic, plant-friendly cleaning crystals made proudly in the USA—no harsh chemicals, no worries.
REACH NEW HEIGHTS - Spray and clean windows up to 27 feet high without ladders—perfect for second-story and hard-to-reach spots.
STREAK FREE BRILLIANCE - Effortlessly removes dirt, grime, and water deposits for crystal-clear windows every time.

The Full Crystal Refill Kit includes two 4 oz. packets of concentrated window cleaning crystals that effectively clean up to 40 exterior windows. Made in the USA with a non-toxic, plant-safe formula, it removes tough stains, dirt, and water deposits without streaks. The solution sprays up to 27 feet high, enabling easy cleaning of second-story windows without ladders. Designed for convenience, it allows a simple spray-and-rinse process for a flawless finish.

Reviews

K**S

Excellent Cleaning Product

I Absolute Love This!!I use it to Wash Down My Porch and Patio.Washes Away Spider Webs, Cob Webs, Dust//Dirt!! KOS

9.07.2025

L**L

Easy to use

Easy to use and works great on windows.

9.07.2025

D**R

Use as directed

Easy to use and quite effective

19.11.2024

J**S

The best outdoor window cleaner

My go to outdoor window cleaner. None can compare.

9.07.2025

C**K

Yes, I clean windows !

I have purchased this item several times from Amazon. Each time it arrives in a timely manner and the packages are in good condition. This product works as advertised. If you hate window cleaning, Full Crystal is just what you are looking for.

26.05.2025

J**S

So hoping this worked!

Initially I was excited and thought this was a great product. I did as directed and cleaned the windows after the sun was not beating on them so they could dry. Don’t know if the photos show it but after drying the windows have streaks and we are going to have to rwc lean them. These are newer windows so it’s not years of dirt and grim.

14.09.2024

J**R

Get the Full Picture

This product really works. I live in a colonial style home and I use this to clean the entire outside of the house; siding and windows. Happy with the product and it does not harm my shrubs and plants. I highly recommend this!

16.05.2025

W**S

Window cleaner

My house has some very very high windows. I love this product follow directions and it really does leave windows clean and streak free!!!!

4.04.2025

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S$33

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to SINGAPORE.

Secure transaction

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Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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