Keep color printing predictable with the HP 31 (9C228AN) CMY Original Ink Bottle Combo 3-Pack. Designed as an OEM supply for compatible HP ink tank systems, this set delivers cyan, magenta, and yellow ink in one replenishment package so teams can restore output quickly and keep work moving. For environments that print frequently, the value is in consistency. Original HP ink is engineered to support stable color reproduction and dependable refill performance, helping reduce the risk of mismatched output, unnecessary reprints, and interruptions during busy production windows. The combo format also simplifies procurement by consolidating three color supplies into one order. This is a practical choice for offices, departments, and service desks that want to keep color documents, presentations, and customer-facing materials aligned with expected HP print quality. When the cost of poor output is higher than the cost of the supply, OEM ink remains the safer purchase. The 3-pack format supports efficient stocking and helps ensure the right colors are on hand when printers need them most.