Plugs that correspond with 20-amp receptacles have one vertical and one horizontal blade, and thus cannot fit into a 15-amp receptacle, which lacks the "T" -shaped slot.

You'll need an RV plug to use your air conditioner, heater, television and other electrical appliances in your RV. We list the best 30-amp RV plugs.

How much you can expect to spend on a 50-amp RV plug A quality 50-amp RV adapter doesn’t tend to cost too much money. Expect to pay around $20-$30, but models rarely exceed $30. 50-amp RV plug FAQ ...

How much you can expect to spend on a 50-amp RV plug A quality 50-amp RV adapter doesn’t tend to cost too much money. Expect to pay around $20-$30, but models rarely exceed $30. 50-amp RV plug FAQ ...

Most major campgrounds have 50- and 30-amp shore power, so you’ll need this in a limited capacity at best. If you don’t like to plan too far ahead, an RV plug is a handy tool to keep with you.

Most major campgrounds have 50- and 30-amp shore power, so you’ll need this in a limited capacity at best. If you don’t like to plan too far ahead, an RV plug is a handy tool to keep with you.

Most major campgrounds have 50- and 30-amp shore power, so you’ll need this in a limited capacity at best. If you don’t like to plan too far ahead, an RV plug is a handy tool to keep with you.