Boveda 62% 1g Square - 1500 Pack GrowLite Refill cartridge for Air Box

Refill cartridge for Air Box 4

Foaming Down a Grow Room Between Cycles

we include a Replacement Indicator Card with each pack

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Boveda 62% 1g Square - 1500 Pack GrowLite Refill cartridge for Air BoxBoveda 1g 62% Square Humidity Control Packs, 1,500 Count Each 1 g square pack holds up to an eighth, or 3. 5 g, at 62% RH. Pure water vapor crosses a reverse osmosis membrane in both directions, so a tube that dries out recovers. Square format sits flat against a lid or in the base of a jar. The Square Format for Tubes and Small Jars At 1,500 per case this is the packaging line format. The square shape is the one for tubes and small jars with a round