hey trich, check greentrees hydroponics for cultilene rockwool, thats where ive gotten it, i also like the sure to grow cubes 1 1/2x1 1/2, they stay dry, as with there hail, doesnt "hold" water. The sure to grow loose fill hold water, gotta use the hail cubes, allows lots of free air space so the mist can penetrate better, (if using a medium of course). And i also noticed that someone awhile back mention the 1/4"nptf jg adapters for your misters were female, actually the f is referring to food, the packaging will arrive with a fork in the lower corner. Bout to bite the bullet and have to drop some $$$ to get my accumulator from the uk, gave my high pressure tank to my buddy who took the old stainless misting system trying to repair it, what a difference a few years makes, now i cant find anything above 150psi, and its cheaper to by a 300L tank and ship to the us than to have one made, so ill be ordering 2.