Thank you for your question. Yes, this vent is good for inspection for a foundation vent.
Thank you for your question. Please go to the product page for the 16" x 4" here: https://www.homedepot.com/p/Gibraltar-Building-Products-16-in-x-4-in-Galvanized-Steel-Flat-Screen-Vent-SCV164-1-8/310198606. Please follow the steps below to localize your Homedepot.com: 1. Localize Homedepot.com using your zip code (My Store Location: Change) 2. Choose the store where you want to pick up the item (Make this my Store). Not all stores stock all SKUs but most SKUs are available through The Home Depot's special order program. You should be able to order it online @ homedepot.com. You can check your local store's inventory, online, if it's not in stock and it is available in your area, it will give you the option to order and pay for it then. You can also contact your local store for availability.
Hi, thanks for your inquiry. Yes these vents have the 1/8" mesh as required by code.