Mini and trim covers as a primary tool — a 6" or 4" cover in this 9" well rides one sidewall, loads unevenly, and wastes capacity to skin-off; that's the 47451 (6") and 92051 (4") world.
Solvent-borne coatings, especially capped — plastic plus a lid plus mineral spirits or epoxy is three strikes; the metal 92060 is the solvent chassis.
High-capacity and production width — ceilings-and-stairwells volume is the 4 L jumbo (92067), and 18" covers are the 92113.
And it is not a liner-cleanup tray: if fast color changes are your problem, the covered tray doesn't solve them — a lined tray does.
9 in / 230 mm is what the pack says; don't let a store title talk you into a spec the box contradicts. Pour to the ramp line — with 2 liters in play, overfill spills are a real mess, not a drip. Condition the full 9" on the ribs — a wide cover strays into striping faster than a mini if you skip the conditioning passes. Cap between coats, stir on return — the cover is the feature; the stir is the tax you pay for the film it can't fully prevent. One wash, at the end — the whole point of the lid is that the mid-job washes don't happen.
Asked at the counter
BUYER QUESTIONS ANSWERED BEFORE THE CART, NOT AFTER THE RETURN
Is it a 9" or a 9-1/2" tray?
The package says 9 in / 230 mm (≈9.06"); the catalog says 9"; only some store titles say 9-1/2". Treat it as the 9" wall tray — a 9" cover loads either way, and the printed spec should match the box .
What's the cover for?
Keeping a wall's worth of paint fresh between coats — click it on, and the tray becomes its own 2 L storage box overnight (Hyde).
How long will 2 liters of paint keep in it?
Longer than the open 20-minutes-to-several-hours window, because the lid slows evaporation — but not forever. Stir before the second coat; strain it if it skinned.
Does it take a liner?
No liner is paired to it here — the cover is the strategy. Want liner-based cleanup instead? That's the 92069 with 92076 liners.
Can I do oil-based paint in it?
Roll a short job unlined and uncapped if you must, but don't store solvent coatings under the plastic lid. Solvent work → the metal 92060.
Will 2 liters get me through a room?
Yes — a couple of fills covers a typical one-room repaint at 9" (2a, 2c). Ceilings and stairwells, where refills mean climbing, are the jumbo 92067's case.