... Springs Bright galvanized steel. length 27' 15"compression. High quality and lowest price Description:27"overhead door Pusher Springs12 gauge ... Bracket with mounting slotsZinc plated steelTotal length:27”15” compressionApprox compression:10lb per inch2” diameter rubber ... /component, accessary/accessories, fittings, kits, pusher springs 15”,27” 27"overhead door Pusher Springs