I can help you manage these items so it won’t show up to your customers, @Avtec Repairs.

When invoicing a Service bundle in QuickBooks Online, it'll automatically breakdown the items associated with it.

To hide the bundle altogether from the customer, you’ll want to edit or create a customized invoice template. Let me show you how:

1. Select the Gear icon, then choose Custom form styles.
2. Click on New style and then choose the Invoice.
3. Under the Content tab, select the middle body of the form.
4. Make sure the Product/Service box is unchecked.
5. Select the date amount description and etc.
6. Press Done.

I attached a screenshot here for your visual reference:

I have here a link that gives you more information about inventory management in QuickBooks. It provides the right ways to handle your business essentials. 

Let me know if you have other concerns with your inventories. I’ll be here anytime.