This is the artifact for the paper A Lattice of Union-Finds by D. Lesbre and M. Lemerre, to be published as SAS 2026. It contains our union-find lattice library, benchmarks, and the frama-c/codex abstract interpreter. We provide a pre-built docker image for x86 processors to easily run the benchmarks and interpreter. We also provide the source code for both the library and interpreter, as well as instruction on how to compile locally or how to rebuild the docker container. See the included README for instructions on how to run our artifact.