Product details:

They're American-made and assembled from aircraft-grade aluminum, with clear anodized body and corrosion-resistant stainless steel for the mounting hardware. These sumps are time-tested to meet the requirements of any diesel pickup with a 4.5 in. diameter flange on a flat surface. Their compact design eliminates the loss of suction related to lifting fuel from the tank by means of a draw straw. This altogether alleviates quarter-tank issues! Diesel Rx fuel sumps require no removal of the tank and can be installed in under an hour. The result is increased performance, reliability, and less maintenance.