This listing is for an aerogarden aerovoir cover intended to block light that causes algae growth. The cover slips on and off the unit, and covers the portion of the 2020 slim aerovoir where light can reach the water.
It is made of a thick layer of waterproof canvas, which blocks all light. Preventing light from reaching the water will prevent algae growth in your aerovoir. The measurements for the cover are approximately 9.5" x 4" x 8. Please note this cover fits the most recent slim model of aerovoir, not the older model that is rounder shaped. This listing only includes the fabric cover, not the aerogarden aerovoir itself.
We pride ourselves on our premium customer service, and are always willing to do all we can to help with any issues. This item is made of waterproof canvas.