And you need to ask as it is important to know what happens after you buy the system and are in the field. ArborSystems Wedgle Direct-Inject Tree Injection System maintenance kit is included with every purchase. It’s held in the carrying case so you have it with you at all times. You don’t need a lot – just O-rings and a replaceable check valve. And that means you can reduce your maintenance cost with fewer parts required. And when it takes less time to fix anything, you are back injecting trees very quickly. Want to see more? For more information on operating and maintaining the Wedgle, click here.