The Mosmatic 82.813 is a 20" stainless steel TKA rotor arm (T-bar) for surface cleaners. It’s the spinning spray bar inside the housing that sweeps high-pressure water across the surface in a fast, even circle, so you get uniform, streak-free cleaning on driveways, sidewalks, patios, and commercial flatwork. Water enters through the center inlet and exits through two 1/8" FPT nozzle ports, one at each end of the arm. The angled nozzles drive the rotation.
The arm is rated to 4,000 PSI and 250°F, so it works with both hot- and cold-water machines. Stainless steel construction resists rust and corrosion from constant water and chemical exposure. Over time, a rotor arm can bend from impacts or wear at the hub. That leads to wobble, vibration, uneven cleaning, and extra wear on the swivel. Swapping in a new arm restores smooth, balanced rotation.
Key features:
- Mosmatic TKA rotor arm (T-bar), model 82.813
- 20" length
- 3/8" female inlet
- Two 1/8" FPT nozzle outlets
- Rated to 4,000 PSI and 250°F
- Stainless steel construction