The 275COVER closes the biggest opening in Ronco's open-top cylindrical family: the 275 gallon tank. At this scale the cover is less an accessory than the other half of the tank - an opening that wide, left bare, turns the largest vessel in the line into the shop's largest evaporation surface and its most efficient debris collector. With the lid seated, a 275 gallon batch keeps its volume and its concentration between uses.
It is molded polyethylene, produced by Ronco in Tustin, California alongside the tanks themselves - the same plant, the same resin family, the same tooling discipline the company has applied since 1974. That shared origin is why the fit is right: the lid is molded to this tank's rim, not adapted from something close.
The practical case for ordering it with the tank rather than later is simple: a large open tank without its cover rarely gets one retrofitted until something has already fallen in. Spec them together and the tank runs covered from day one.
The matching tank and every other size are mapped at the Ronco Plastics hub, and the freight estimator prices the shipment. OneSource Plastics is an authorized Ronco Plastics dealer.