Go to the Harbour Freight web site and sign up for the emailed free coupons. They come about once a week and the vacuum pumps go on sale about every 2 or 3 months. I got mine on the last sale. There are lots of coupons for high percentages off on many commonly used items. I never knew I needed so much stuff. Anyway the pump I got burys the gauge needle at 30, but I do live at a staggering height of 38 feet above sea level. I can't figure a way to link the coupon from the email on here, sorry. Just sign up and keep a watch out for it. Since it is still current I would think you would get it immediately.