Here at Montvale Hardware we have many top of the line filters like Flanders, Do It Best and 3M.
10x20 16x20 30x30
Filters are designed to eliminate and trap dust, dirt, pollen, and any other unwanted materials that flow through your ducts. The filters produced by Flanders are recommended to be changed monthy. Some are constructed with metal and fiber while others are just fiber.
Do It Best manufactures filters that can be changed every 2-3 months.
The best quality filter for your money is 3M. Though they are more expensive they are designed to filter and trap even the toughest particles commonly found in the household. The material is put together with a tighter pull so it really traps everything that travels through it. They are recommended to be changed every 3-4 months. Only available in certain sizes.
Check with your friendly staff to see what 3M can do for you.