41-Pockets Tool tote bag, Large- Sturdy, Open Top With Cover - For HVAC, Electricians, Utility, Craftsman, Carpenters, Builders & Construction Workers Width_20in + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 12" OR 12" x 20" duct opening (measured at the opening)

Actual Filter Size – 33 3/4"w x 29 3/4" x 1"

1mm PVC coating make these vent covers a top choice for sidewall

+ Product Details Size - 10"w X 6"h is the size for the duct opening measurement only

41-Pockets Tool tote bag, Large- Sturdy, Open Top With Cover - For HVAC, Electricians, Utility, Craftsman, Carpenters, Builders & Construction Workers Width_20in + Product Details Perfect Fit+ Product Details Size 44 x 19 x 32cm High Quality A uniquie combination of cotton & synthetic fibers gives you the most filtration and the least air resistance equals great air & easy airflow for your system. Design The inner and outer multi compartment pockets make it easy to store your tools and gear 9 reinforced internal pockets 8 bolstered outside pockets 24 webbing loops Removable Tool Wall Plastic Base With Shoulder Strap With plenty of room in