16x20x4 (3 5/8) Pleated MERV 8 Air Filters 1 Pack Water Heaters Chillers Designed to provide a cost

Designed to provide a cost effective way for farmers to rebuild mineral reserves of their soils and thus the nutritional value of their food

Drain Fitting: ¾” MPT x ¾” barbed

• Stronger seedlings: Reduces transplant shock

Made under quality control at Grodan factories

Remember—keep your pH probe wet

16x20x4 (3 5/8) Pleated MERV 8 Air Filters 1 Pack Water Heaters Chillers Designed to provide a costImportant 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. If you are replacing a 4 3 8 depth 16x20x4 filter