– Trusco Trueline Model 250N Nitrogen Powered Parking Lot Striper The Trueline 250 N and 350 N (nitrogen powered) 5 / 10 gallon stripers are easy to use paint stripers that can be used to stripe factory floors, parking lots or sports fields. The 250 N is a 5 gallon machine and is the more … Continue reading – Trusco Trueline Model 250N Nitrogen Powered Parking Lot Striper