A:  I am a customer and do not work at Home Depot and have no idea about product pricing. I would direct that question to your local store.

A:  $490

A:  I bought it for a light switch but my guess is that it would. I think the cuts are standard.

A:  Yes it does, actually used on them on half a dozen 15amp GFCIs, not a problems at all

A:  Yes

A:  Yes

A:  Yes.

A:  Yes no problem.

A:  I believe that all Leviton GFI outlets are compatible with decora wall plates. For instance, model # R02-GFNT1-0KW is decora compatible, and I used model# GFNL1-W with these plates.

A:  I believe it will cover the GFI outlet.

A:  The dimensions of these plates are Depth (in.) 0.23 Height (in.) 4.5 Width (in.) 2.75

A:  standard

A:  These are standard sized.

A:  This one is a standard plate. The "Preferred" plate is 3/8 bigger in size.

A:  These are the standard plastic which can break or scratch. The preferred nylon ones are midway sized and actually cost less [sku 159-291].

A:  These are standard size.

A:  "gang" refers to the number of devices in a junction box. i.e. a single outlet is a single gang box, so you would need a single gang cover plate. 2 switches = 2 gang box or 2 gang cover plate.

A:  1 switch/outlet or 2 or 3 etc

A:  Gang refers to the number of opening in the plate i.e. 1-gang will house one single switch or outlet, while a 2-gang will accommodate 2 switches or 2 plugs or one of each, 3-gang three spaces (openings) etc. If you view an add for a 2-gang this will become more obvious.

A:  Gang is the number of switches or outlets in the box. 1 gang will cover a box with 1 switch or 1 outlet, 2 gang will cover a box with 2 switches or 2 outlets, 3 gang will cover a box with 3 switches or 3 outlets, etc. Usually, you will want the color of the wall plate to match the color of the switch or outlet.

A:  It refers to the width of the box. A 1-gang box is wide enough for a switch or duplex receptacle. The idea is that you can "gang" up electrical components in the box.