Skirt metal measurement of 20" is measured from the floor line molding of the coach, down under the coach, including radius.
The "Alloy Metallic", is a replacement for the previous part number #317882, which was Dark Metallic Charcoal, which is no longer available. Alloy Metallic is the only replacement, however, there is a color difference and you should consider changing the entire side.
This item will ship commercial carrier and have 4/5 business day lead time, prior to shipping from Keystone RV to you.
Elfire RV26D80M-C1 is a possible replacement for the EF-30B curved and EF-30B flat front fireplace....
Elfire RV26D80M-MT1 is a possible replacement for the EF-30B curved and EF-30B flat front fireplace....