The GMP Tools Duct Clamp, 10 mm, for GMP JetStream (vendor part 89908, Millennium part 603836), seals 10 mm duct onto a GMP JetStream cable blower so jetting pressure holds through the run instead of leaking at the duct connection. Sold individually, it's a routine changeover part for crews adjusting a JetStream blower to different microduct sizes across a fiber network build. Machined to a tight tolerance, it seats securely without over-torquing the duct. Keep a range of JetStream clamp sizes on the truck to match whatever duct size the job calls for.