1/2" Jetter Nozzles — Trailer Jetters & Mainline Work
1/2" NPT is the contractor workhorse size — trailer and truck jetters from 8 to 20 GPM cleaning 3"–8" mains, long laterals and commercial lines. It's the deepest size we stock, and every KEG nozzle in it is jetted to order for your exact GPM (8, 10, 12, 14, 16, 18 or 20) so the jet geometry matches your pump instead of choking it.
NASSCO Tier 3 at this size: the Cleaning Nozzle (80%+ efficiency — if you buy one nozzle, buy this) and the Traction Nozzle with forward jet, which pulls hose up grades and doubles as a penetrator. The supporting cast runs deep: Rambo for roots, Rotor and Duce for grease and scale, Egg, Sewer Flush, Twister, forward-jet options, and the 1/2" Victory Line (Cleaning, Rotor, Traction, Long) for value-priced insert nozzles.
Building out a truck? The 1/2" kits — 5-piece and 13-piece with foam-fitted Pelican cases — are the fastest way to cover every call, and this size also has deadman valves and cases sized to match. When an insert wears, it's an $8–15 swap, not a new nozzle — the math behind that is in Cheap vs. Pro: The Real Math.
Choosing: match GPM first (your machine's rating is the variant you order), then pick by job — routine maintenance = Cleaning, roots = Rambo, grease = Rotor, steep runs = Traction. Bigger machine? Step up to 3/4". The efficiency standard explained: NASSCO Tier 3 guide.