The liner is the most repeated purchase in the automatic-box ecosystem. This page covers fit, materials and the liner-as-SKU decisions.
Every self-cleaning box with a drawer consumes liners, which makes the liner the ecosystem item with the shortest reorder cycle. It is also the item most often treated as an afterthought: a poorly fitted liner is the difference between a clean pull-and-replace and a spilled tray, and reviews blame the box. This page treats liners as the product they are.
| Parameter | What to specify | Why |
|---|---|---|
| Dimensions | Matched to the drawer cavity with a fold-over lip | A liner that slides or gaps spills; see the platform specs in the automatic category |
| Thickness | A stated gauge band | Too thin tears on clumps; too thick blocks the drawer |
| Material | PE film family references | Chemical tolerance and quiet draw behavior |
| Count per roll | Roll length and per-liner perf | Defines the reorder unit |
| Compatibility claim | Model numbers listed on the pack | Prevents wrong-buy returns |
Liners are priced as a service: the fair annual cost of the consumable, added to the running-cost view a brand publishes, should feel reasonable against scooping labor saved. The pricing posture follows the ecosystem logic in the accessories ecosystem and the spare-parts framing in the parts program: fair price, flat packaging, listed where the owner already is.
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