$26.39+FS refurb/CPO Ryobi 18v P731 inflator and deflator
Direct Tools (owned by ryobis parent company TTI) has a certified Pre owned (used/refurbed) ryobi inflator. Great for topping off tires and inflating mattresses and pool toys. Has an auto stop for the tire inflator and a digital gauge. It uses any of ryobis 18v batteries (not included). If you want to go cheaper they also have the small inflator for 15.99.