The Artificial Rain Gutter creates solid mounting points so that select Thule gutter feet can be used on vans, campers, and truck caps without gutters. Perfect application for camper shells and caps. Easy top- or side-mount installation requires drilling. Sold in a set of four mounting plates. Compatible only with 300, 387, 953, 324, 326, and 380 Gutter Foot Packs. Please consult the Thule Fit Guide to match the correct Thule parts to your vehicle. 91021542174 19647900012 542