"BERNZOMATIC" TRIGGER START TORCH KIT Trigger start torch kit includes: 16.92 oz. MPP (Max Power Propylene) gas and TS4000T (same as AC40 Ace brand torch head) Torch head has instant on/off trigger lock button keeps torch lit for finger free use Burn tip produces swirl flame Torch is pressure regulated to burn in all directions and is cast aluminum body New line of Fatboy MAPP gas from Bernzomatic.