Primatech Q550LR Pneumatic Nailer has an adjustable height and can be used to install floors from 3/8 inch to 3/4 inch thick with an 18 gage cleat like this one.
A 10 day rental requires a fully refundable $500.00 deposit. You are not charged for shipping days and acclimation days.
If the nailer ships with your flooring order it comes with a prepaid return shipping label as well.
To calculate how many cleats you'll need, check out this cleat calculator tool.