This is a Super Efficient anode cap fits 3-500Z,3-500ZG,500Z,4-400,4-400a.  This cap gives you a place to put the high voltage wire off the plate choke.  Uses 6-32 screw in the top and 8-32 set screw to hold it.  These are machined from aircraft aluminum.  Everything we manufacture is made in house by us on high precision cnc machines.  Pictured is a small factory tube cap for size comparison to show the difference in caps. Auction is for one cap only.

NO REFUNDS OR RETURNS!

TUBE IS NOT INCLUDED !!