Growonix Quartz sleeve for 12 GPM UV systems Stones This is the seedling-mat version

This is the seedling-mat version

because the vapor travels through the air

so water moves freely without a built-in shutoff slowing things down

temperature & EC of growing medium

Growonix Quartz sleeve for 12 GPM UV systems Stones This is the seedling-mat versionGrowoniX UV 12 Quartz Sleeve (12 GPM) This GrowoniX UV 12 quartz sleeve is the clear high purity quartz tube that houses the UV C lamp inside the 12 GPM sterilizer. It separates the lamp from the water while passing 254 nm UV C through to treat the flow. At 35. 8" x 0. 6", it is the long sleeve sized for the high flow UV 12 chamber. A clouded or scaled sleeve blocks UV, so it is a wear part you keep on hand. Keeping the 12 GPM UV Sterilizer at Full