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Large Duct Ports (8") (20 cm): 2 on the top
MERV 14 furnace air conditioner filters are comparable to HVAC filters with the rating of MPR 2800
Green Lite is designed with more perlite and pumice to give you enhanced drainage and greater oxygen in the root zone
it's designed to keep up with the hardy farmers that use it
the atmosphere is comprised of around 80% nitrogen which is in a form (N2 or atmospheric nitrogen) that is not conventionally available to plants
Active Aqua Bottom Draw Pump Adapter, AAPW550/AAPW800, 5/8" inlet thread co2 Large Duct Ports (8") (20Description Active Aqua Bottom Draw Fittings: These fittings let you transform your top grade submersible pump into a practical bottom draw pump. There is no necessity to buy additional sump pumps to eliminate that last bit of water in your reservoir or tank. You simply have to connect your bottom draw fitting to the threaded inline port of an Active Aqua water pump. You don't have to lift heavy reservoirs anymore to remove the remaining water