Using this Fisher & Paykel screw cap is easy. Just find the 10mm diameter holes where the retaining screws are on your fridge or freezer. Then, simply place the cap over the screw. Make sure it fits snugly. As for the models we mentioned, this cap is a perfect fit. But if you have a different model, it might work too. If you're not sure, reach out to us. When it comes to maintenance, this plastic cap is quite durable. Just clean it with a soft, damp cloth if it gets dirty. Don't use any harsh chemicals as they could damage the cap. And remember, if you're in doubt about whether this part is right for your appliance, give us your full model number before you buy. That way, you can be sure you're getting the right part for your fridge or freezer.