and don't forget those extra air handler things like if you have a HRV. i swear the previous owners of mine never cleaned it and the OEM filters basically disintegrated when i did it the first time after moving in. luckily all i had to do to replace them was cutting down to size those cheap-o washable filters from the hardware store, good enough to keep the large chunks out.
Even if they don’t carry the proper size at the hardware store, you can usually ask them to order one or find the correct size online for order. Often, they’re even cheaper online!
and don't forget those extra air handler things like if you have a HRV. i swear the previous owners of mine never cleaned it and the OEM filters basically disintegrated when i did it the first time after moving in. luckily all i had to do to replace them was cutting down to size those cheap-o washable filters from the hardware store, good enough to keep the large chunks out.
Even if they don’t carry the proper size at the hardware store, you can usually ask them to order one or find the correct size online for order. Often, they’re even cheaper online!