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Ancient Amber is specially extracted for low molecular weight
Foams less than regular formula and tweaked ever so slightly to behave more appropriately for the hydroponics reservoir environment
Dolomitic lime
a programmable setting to control the cool-down period of the HID bulbs in the event of a power interruption to prevent damage to your bulbs
and these are suitable for saltwater operation
24x28x1 MERV 8 AC Furnace Filters 6 Pack commercial-lighting-fixture Ancient Amber is specially extractedNordic Pure MERV 8 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores and other contaminants are removed. MERV 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters
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