Harbor Freight Tools Coupon Database - Free coupons, 25 CODES Get Deal $10 OFF ANY PORTLAND PRODUCT Lot No. 62630, 63075,62337, 62469,64497,62896, 63190,63254,69293, 61714 63255 Valid Thru: 12/31/20 - $79.99 Coupon Code: '21599284' view all (1) (current price - 20% = 0) add to list. $15 OFF CENTRAL PNEUMATIC 3 GALLON 100 PSI OIL-FREE AIR COMPRESSOR Lot No. 61615, 97080 Valid Thru: 12/31/20 ... New Harbor Freight Fortress Brand Air Compressors. By Josh The Tooldude; February 13, 2019; No Comments; As has been the trend now for a while, Harbor Freight is expanding their offerings with new brands and products across the board with one of the newest being their new Brand Fortress which is the branding on their new top air compressors. All of these blasters need huge volumes of CFM air depending on the nozzle and cabinet size , It's not pressure you need it's volume. For me a minimum would be a : 2 stage 7-10 HP Compressor , 80-120 gallon tank and 18-35 CFM depending on the nozzle. 20 Gallon portable air compressor with horizontal design for easy transportation. 150 PSI and delivery of 4 CFM @ 90 PSI. Unit contains a reliable 1.3 Motor HP to tackle your DIY projects Durable oil free pump provides extended, hassle-free operation while insuring superior motor performance and longevity.