BEST-Link
couplers are non-metallic high-pressure rated airtight couplings
for polyethylene or PVC conduit and innerduct. BEST-Link couplers
feature a patented dual-action sealing system that stops air
flow in two places at the coupling joint: on the ends of the
ducts and along their exterior surface within the coupler. This
system is superior to single gasket couplings and provides for
a greater range of application per nominal size, reducing mismatching
of products in the field.