TracRac 25200 Truck Rack Mount Kit Sae & Metric and they vary in flow

and they vary in flow rates from 1

Compliant for treated lumber

Butyl bladder for long lasting air retention

Acts as a water conditioner

TracRac 25200 Truck Rack Mount Kit Sae & Metric and they vary in flowTracRac Toolbox Mount Kit allows users to mount any aftermarket toolbox onto the TracRac Base Rails. The kit can also be used to mount additional accessories to the Base Rails and have them slide or be removed. Highlights : Works with most toolboxes Includes: 2 Aluminum Toolbox Extrusion Mounting Hardware Includes 1 pair of slider extrusions with stainless steel fasteners Mounts to underside of "Saddle" toolbox Lets you mount toolbox without drilling