By accident discovered that a Autozone PN#290 /6 upper hose is equally adapt for use as a bottom hose and fits better then the so-called correct molded piece, remember to salvage your spring. Added bonus is the price, the top hose only runs $6.00 as opposed to $12.95 for the bottom with no spring. With savings like this I have enough pocket change left over to freshen up the heater hoses!