The E-210 firebox is narrower than the E-310. Two mains, two flavorizers, two knobs. People still buy a three-tube Spirit 300 kit because the lid says Spirit. The third tube has nowhere honest to live.
Front-control 2013+ E-210 / Spirit II E-210 typically uses Weber 69785. Confirm year on the plate. Three knobs → E-310 tubes.
Fitment
Two main tubes. Crossover bridges those two, not a phantom third.
OEM 69785 is an 18-inch pair plus a shorter crossover.
GS4 Spirit II inlets are not a drop-in for every original Spirit 200 valve. Match the photo to the inlet in your hand.
The verified OEM listing above is the 69785 set. If the photo is three tubes, you are on the wrong page.
Safety
Tank off. Box cold.
Do not bend orifices.
Lid open when you light.
Procedure
Photograph the two tubes, electrode, and crossover.