Air Bear 20x25x5 (4 7/8) Air Filter Replacement MERV 15 Plus Carbon 2 Pack microbes Here is a waterproof tester

Here is a waterproof tester that offers high accuracy pH

Coco fiber also has a number of unique benefits to the growing media when added

making it more sound absorbing and rustproof

The lightweight and high porosity of B'Cuzz Hydromix HP provides conditions necessary to establish plant growth

float valve and float valve plumb kit

Air Bear 20x25x5 (4 7/8) Air Filter Replacement MERV 15 Plus Carbon 2 Pack microbes Here is a waterproof testerImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. We also carry 4 3 8 and 5 1 4 inch depth filters,