20W UV Disinfection Portable Light With Ozone grow-light-reflectors making water changes a snap

making water changes a snap

Canvas measures: 4' 10" x 100'

Zeolite reduces watering and leaching of nutrients

This is in addition to the highly appreciated cross grooves to improve water flow under the block

ppt (mS and ppt are new)

20W UV Disinfection Portable Light With Ozone grow-light-reflectors making water changes a snap20w Portable UV Wand with Ozone Release WHAT IS UV C Ultraviolet light in the C spectrum (UV C) is energy rich light with a wavelength of 200 400 nanometers (nm). UV C light is very versatile and can be used for disinfecting water, destroying harmful micro organisms in other liquids, on surfaces, on food products and in 'air'. With UV C technology it is possible to destroy more than 99. 99% of all pathogens within seconds, without addition of