CSF High Performance Triple Pass Dual Core Radiator with AN Fittings Universal Universal Radiator - Dual core w/ B-Tube Tech - AN fittings - Triple pass design - Multiple Configurations, including V-Mount set-up CSF, The Cooling Experts, have been serving the US aftermarket Compatible with almost 4 decades. With over 30 million units sold, CSF is your exclusive source Compatible with Radiators, Condensers, Intercoolers, Inverter Coolers, Racing Radiators and Pressure Caps. Core Material: Aluminum