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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Description

✨ Elevate your view—crystal clear windows without the hassle! 💧

MASSIVE COVERAGE - Two 4 oz. packets clean up to 40 exterior windows—perfect for large homes or offices.
ONE STEP CLEANING - Engineered bottle design lets you spray and rinse in one smooth motion for ultimate convenience.
REACH NEW HEIGHTS - Spray up to 27 feet high, no ladders needed for those tricky second-story windows.
ECO FRIENDLY SAFE - Non-toxic, plant-safe, and non-corrosive—protect your garden while sparkling your glass.
EFFORTLESS STAIN REMOVAL - Powerful crystal formula wipes out dirt, grime, and water deposits with zero scrubbing.

This Full Crystal Refill Kit includes two 4 oz. packets of concentrated window cleaner that effectively remove tough stains and grime from up to 40 exterior windows. Made in the USA, the non-toxic formula is safe for plants and outdoor surfaces. Its powerful spray reaches up to 27 feet, eliminating the need for ladders and scrubbing, while the innovative bottle design allows for easy spray-and-rinse cleaning.

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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