Dynalon Sleeve, Glass Joint, PTFE 29/42

Dynalon sleeve, glass joint, ptfe 29/42; reusable ptfe joint sleeves feature a unique manufacturing process that permits superior quality ptfe joint sleeves at unbelievably low prices. Price permits disposability!elongated cones of micro-thin virgin ptfe film tapered to fit snugly around glass joints.approximately 0.05 mm (0.002”) thick w/ taper of approximately 1.10 on diameter. Eliminates the need for lubrication and frozen, leaky ground joints. Can be used over a temp range of -75° to +260° c.supplied in a pack of 6 - DYNA