Silicone 300 Mesh (50 Micron) Select Tri-Clamp Size:3-inch the Thermo-Hygrometer is an economical

the Thermo-Hygrometer is an economical way to oversee the environment in your grow room

Heating mat for seed starting: This 10” x 20

Seed Starter Kit for Backyard Gardeners

6” x 10” Register Grille: This grille is designed to better regulate airflow for enhanced heating and cooling control

Medium: Powder

Silicone 300 Mesh (50 Micron) Select Tri-Clamp Size:3-inch the Thermo-Hygrometer is an economicalSilicone 300 Mesh (50 Micron) These white silicone mesh gaskets are meant for filtration with alcohol systems because of their great resistance to many of the common forms of alcohol. They are NOT recommended for use with Butane or Propane. Mesh Micron Filter Chart For Further Chemical Resistance specifications please refer to this chart: Chemical Compatibility Database Specifications Maximum Pressure Not Rated Temperature Range 40 to 450F Color White