Boveda 58% 4g Unwrapped Bulk - 600 Pack Propagation Accessories + Tools 75 in Micron rating 10

75 in Micron rating 10 micron Capacity 8

The 300-count overwrapped case is the configuration that carries them

These jumbo plugs give you 32 "homes" for your seedlings and cuttings

scientists and tested in collaboration with The Ohio State University

Boveda 58% 4g Unwrapped Bulk - 600 Pack Propagation Accessories + Tools 75 in Micron rating 10Boveda 4g 58% Unwrapped Bulk Humidity Control Packs, 600 Count 58% RH is the drier of Boveda's two flower levels, and the one to reach for when material is going into a long hold. Each 4 g pack covers a half ounce, moving pure water vapor across a reverse osmosis membrane in whichever direction the jar needs. Same salt, purified water and thickening agent as the 62%, set to a lower equilibrium. 58% RH Packs for Drier Long Term Storage, 600 to a Case