20x20x1 Pure Green Plus Carbon Eco-Friendly AC Furnace Air Filters 24 Pack Promote Start with Bio·Grow® as soon

Start with Bio·Grow® as soon as the first leaves appear and the plant has a height of 10 to 15cm

It can be used in hydroponic systems as simple as manually irrigated containers

Includes stainless steel UV unit with ¾" MNPT ports

FMWH3120L is used for (2) 4' bulbs (one on the FLP/T44

It's great for stirring your nutrient tank too

20x20x1 Pure Green Plus Carbon Eco-Friendly AC Furnace Air Filters 24 Pack Promote Start with Bio·Grow® as soonPure Green Plus Carbon Eco Friendly AC Furnace Air Filters by Nordic Pure starts with an environmentally responsible non woven, high loft, antimicrobial filter media made of fine gauge polyester. As we continue to keep our eyes on media technology advances, our Pure Green media will be changing its appearance. Please expect the same quality and performance you have come to rely on from our Pure Green media which will now be white in color on the