Barblock 1-Piece Autoload Pvdf 1-3/8In-1-1/2In^ BarbLock retainer for high heat are made withretainer has a full 360 deg radial crimp behind the barb & 360 deg of compression over barbGÇÖs ridge-design solves leak path problems in fluid transfers.1-piece autoload, Material: pvdf, 1-3/8in-1-1/2in