Robinair Universal A/C Dye - Four Replacement CartridgesRobinair Universal A C Dye Four Replacement CartridgesFeatures and Benefits: Four twist on cartridges, 1oz. (30 ml) each Enough dye for 20 applications OEM approved and SAE certified dye Service stickers included Made in USA Pinpoint leaks in A C systems. Warranty: 1 yr warranty on material and workmanship SHIP FROM : USA SHIP TO : USA Average Shipping days: 2