Barblock 1-Pc Auto Ld Pvdf 1-1/8In-1-1/4In^ BarbLock retainer for high heat are made with polyvinylidene difluoride retainer has a full 360 deg radial crimp behind the barb & 360 deg of compression over barbGÇÖs ridge-design solves leak path problem, 1-pc auto ld, Material: pvdf, 1-1/8in-1-1/4in