Blackout sleeves for wide mouth mason jars

This catalog includes a 12-pack of blackout sleeves designed to fit wide-mouth mason jars used in hydroponic planting. These sleeves are made from opaque Oxford fabric, which blocks light from reaching the water inside the jar. Preventing light exposure is a key step in keeping the reservoir clean and healthy for plant roots.

The fabric is both washable and reusable, offering a long-term solution for jar-based gardening. The sleeves are easy to slip on and off, allowing for quick inspections of the root system or water levels. Using these covers is a simple way to adapt standard glassware for effective hydroponic use.

These listings provide a practical accessory for the Kratky method or other jar-based growing techniques. The 12-piece set allows a gardener to manage a dozen plants at once with a consistent look. The durable Oxford material ensures the sleeves can be used through many growing cycles without losing their light-blocking properties.