The original Arctic FoxÒ fuel warmer. This all stainless steel loop fits flat or curved tanks. Optional fuel standpipes are available. Heaters may be ordered factory assembled to fit any tank depth from 14" thru 29" (356mm thru 737mm). Custom built fluid warmers may be quoted for tanks under 14" (356mm) depth or over 29" (737mm) depth. A 5 year or 600,000 mile (1,000,000 kilometer) warranty is your assurance of trouble-free operation.