Well just let us do it for you. Free shipping and the work is 'guaranteed' What could be easier. If they fail we will replace them no questions asked. New cartridges are warrantied by their manufacturers. No liability beyond replacement of defective merchandise is assumed or implied.
Any damages incurred during shipping are the responsibility of the shipper.
A complete copy of our warranty is available upon request. Use of Manufacturer's name is for idenification only. We are not associated with any maufacturer.