Atomic Service Kit - First Stage/J Seat

Atomic Service Kit – First Stage/J Seat   This is the first stage rebuild kit for atomic regulators.  This first stage rebuild kit fits all the regulators that use the J seat. It includes all the o-rings, seat and filters necessary to rebuild this regulator.   Seat Specifications Atomic has two style second stage seats.  The way you tell is to pop the top cap off your Atomic regulator.  The seat is located in the top cap.  To get the seat out just put a little air from an air hose on the little hole on the outside of the cap and this will pop the seat out.  The identifiers are below.     Old Style No Markings on top   J Seat Has a large “J” on top of the seat. (most common today)