Allergy Reducing Air Vent Filters 4x12 (Register Vent Filters) 1 Pack of 12 Hydroponics Pure Blend Pro Bloom 2-3-5

Pure Blend Pro Bloom 2-3-5 fruit and flower blooming base nutrient contains only natural sources of essential major

Requires 3 AAA batteries

Black Cutworm

Nitrided Blades are FoodSafe

Allergy Reducing Air Vent Filters 4x12 (Register Vent Filters) 1 Pack of 12 Hydroponics Pure Blend Pro Bloom 2-3-5Qty Per Unit: Package of 12 Register MERV 11 Air Vent Filters Register Vent Filtration Allergy Reducing Air Vent Filters MERV 11 has a permanent electrostatic charge to help trap dirt, dust, smoke & pollen sized particles through furnace AC registers. Keeps dirt & objects from falling into ducts. Can be trimmed to fit standard size vents 4" X 12" and under. Why use AIR Vent Filters? Air Register Vent Filters are made of a self charging electrostatic