In 2021 the TRI-RAM models were redesigned. You can find information about the current model here: Roots 826 TRI-RAM

Flow Range: to 4319 CFM
Max Δ Pressure: 15 psi
Max Δ Vacuum: 16″ Hg
Maximum RPM: 2670
Minimum RPM: 475
Max ΔT: 230˚F
Connection: Rectangular or 12″ Flange
Shaft Dia.: 70mm
Drive End Lubrication: Oil
Gear End Lubrication: Oil
Weight: 2300 lbs

Optional detachable rugged steel mounting feet and adapters for inlet and discharge. If ordering a new unit, feet and adapters are typically needed. Replacement units are ordered without feet or adapters when the feet and adapters are already installed in the system.

The Tri-RAM 826 is a replacement unit for the discontinued RAMX 800