Sandpiper uses a black plastic one under the front end and I saw a pop up at the local rv show last week that had one where you mention but can't rememeber the name. Rockwood maybe.
1990 Jayco 250 Special
2008 Ram 5500 DRW 6.7, Cummins, Aisin auto
Holland/Binkley 5th wheel, Reese Dual Cam, and more
232,500 kms in 2013
200,000 kms in 2014
160,000 kms in 2015