Fabrication parts Items you can use to finish up your project. These are the same components we use here on all our projects! Aluminum maf flange $18.99 VIEW CPR 2” Weld on alluminum cap assembly $52.00 VIEW CPR 3” WELD ON ALLUMINUM CAP ASSEMBLY $66.00 VIEW CPR 6” BOLT ON ALLUMINUM CAP ASSEMBLY $195.00 VIEW