Here's the reply from Mobile Outfitters:
This product is a special order product that is unit specific based on a customer's slide system, seal system, and type of RV. We have ran into a few complications with installations and are working through them. Until we have all install applications determined & reviewed we cannot supply. We appreciate your interest and look forward to supplying this awesome product to you in the near future.
Thank you and have a wonderful weekend!
The Mobile Outfitters
'13 Excel Winslow 34IKE
'12 GMC Sierra 3500HD
Previous RV's: '03 MobileScout Titan 29DBS; '01 Sunnybrook Lite 2708 SLE; '99 Coleman Utah
Previous TV's: '02 Chevy Suburban 2500 8.1 4.10; '99 Chevy Express 1500 5.7