-40%
Kratky Jar Sleeve—Indoor Mason Jar Hydroponics
Kratky Jar Sleeve—Indoor Mason Jar Hydroponics

Kratky Jar Sleeve—Indoor Mason Jar Hydroponics

$ 6.6

Availability: 21 in stock
  • Set Includes: Jar sleeve
  • Item type: Quart / 32oz / 1L mason jar
  • Item Width: 4 in
  • Number of Items in Set: 1
  • Material: PLA Plastic
  • Color: Black
  • Capacity: 0.25 gal
  • Tank Capacity: 0.25 gal
  • Country/Region of Manufacture: United States
  • Type: Accessory
  • Brand: Stephanie Cervi Design
  • Capacity per Site: 0.2 gal
  • Condition: New
  • Number of Sites: 1
  • MPN: MJ-KS-001
  • Manufacturer Warranty: None
  • Item Height: 5.5 in
  • Features: Opaque
  • Item Length: 4 in
  • Indoor/Outdoor: Indoor

    Description

    Opaque black mason jar sleeves block light to keep algae from growing in the water of Kratky method hydroponics systems. Printed in environmentally friendly PLA plastic.
    Designed for quart sized mason jars, these sleeves block light from all sides except for a narrow viewing window.  For better visibility inside the jar, I recommend slipping a piece of white paper inside the sleeve. A helpful cutout located halfway up the viewing window indicates the maximum fill level. Do not refill your Kratky jars above this tab or you risk drowning your plant's roots.
    I can print jar sleeve other colors by request, but that may affect how opaque they are. Please message me for details.