Compare Quick view ADVANTAGE MANUFACTURING ADVANTAGE MANUFACTURING | SQUARE FLANGE GASKET | 320108 MSRP: Was: Now: $412.03 ADVANTAGE MANUFACTURING | SQUARE FLANGE GASKET | 320108 OPTIMUS # 5018-16SONFARREL # 320108 GENERAL DESCRIPTION:THIS IS A SQUARE GASKET WITH A ROUND HOLE USED IN SOME SONFARREL/MARTEC/ADVANTAGEPUMPS ... Add to Cart Add to Cart