The PLHS4 Rhino-Rack Backbone Pioneer Leg Height Spacer is designed to fit the Pioneer Roof Systems onto the RLT600 QuickMount Legs
Backbone Pioneer Leg Height Spacer; For Use w/QuickMount Legs PN[RLT600];
Rhino-Rack Pioneer Leg Height Spacer for RLT600 Legs
Backbone Pioneer Leg Height Spacer
PIONEER LHS RLT600 TO RJKB1
Roof Rack Mount Shim