HP 729 DesignJet Printhead Replacement Kit

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Free delivery on all orders to UK mainland. Typically you should expect to receive delivery of your order in 1-2 working days for in stock items (subject to successful completion of order processing & security checks). However, for remote destinations delivery may take longer – please see here. Please note that currently we do not ship products or deliver services (unless otherwise stated in the HP Care Pack features) outside mainland UK or to overseas, to the Channel Islands, internationally or to P.O. boxes or BFPO addresses. For further details please see Delivery Information.

Important update for Northern Ireland. If you're ordering for delivery in Northern Ireland please note there may be a slightly longer delivery time after January 1st than quoted on-site and in your order confirmation emails.

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Claim - World’s slimmest consumer notebook with the fastest AI performance*  

*Based on HP's internal analysis and publicly available information as of June 2026. Claim is valid as of June 2026. Claim was validated under these criteria: any 14-inch notebook with Windows Home or MacOS, less than or equal to 11 millimeters in rear thinness, and has a Neural Processing Unit (NPU) capable of performing up to 85 or more trillion operations per second (TOPS) for AI acceleration. NPU Performance depend on system configuration, software optimization, and usage conditions. Up to 85 TOPS NPU performance can only be achieved on Snapdragon® X2 Elite 18-core (X2E-90-100) and Snapdragon® X2 Elite 12-core (X2E-84-100) processors.
 
 
Claim - World’s Most Durably Slim 14-inch Consumer Notebook* 

*Based on publicly available information and HP’s internal analysis of 14-inch display consumer notebooks from major manufacturers with Windows Home or MacOS as of December 2025. Slimness is determined by the notebook’s rear height of 10.7 millimeters. Rear height measurement is near the back edge where the chassis bottom cover taper ends, excluding transition area to rubber feet and hinge cap. Durability is measured by the notebook’s passing of 20 MIL-STD-810H test items performed by HP, including drop, vibration, handling, shock, dust, humidity, altitude, radiation, and extreme temperature tests. Testing is not intended to demonstrate fitness of U.S. Department of Defense (DoD) contract requirements or for military use. Test results are not a guarantee of future performance under these test conditions. Accidental damage requires an optional HP Accidental Damage Protection Care Pack.