The 25 Gallon Side Mount Aluminum Reservoir with Micron Filter from Buyers Products features.125 thick aluminum construction to resist corrosion and provide good heat dissipation, and an integral welded-on aluminum bracket for mounting to the truck frame. Lightweight and high quality, it's ideal for running small applications such as landscaping or smaller city plows. The reservoir has several features for optimal fluid operation, including: - a quarter-turn chrome filler breather with a wire basket strainer - a sight fluid level and temperature gauge - an interior baffle between suction and discharge to aid in fluid cooling - a magnetic drain plug to aid in preventing metallic particle contamination The reservoir comes pre-drilled for an included tank-mounted HFA5S series return filter. Choose from a 10 or 25 micron filter (shipped separately). It comes fully tested.