Company entity and registration number per https://www.cuckoo.sg/support (verified 2026-08-06): "CUCKOO International (S) Pte. Ltd. (Company Registration No.: 201616841Z)". Origin: cuckoo.sg homepage title is "CUCKOO Singapore | South Korea No. 1 Home Appliance Brand" (https://www.cuckoo.sg/). Service model: CUCKOO+ Care Service is described as "powered by professionally trained service specialists" (https://www.cuckoo.sg/cuckoo-plus-care-service/water-purifier/), and the support page lists "CUCKOO+ Technical Specialist (Technician)" as a direct hire role — read as in-house, though the site does not explicitly state employment structure for field technicians. Cuckoo SG's product pages (cuckoo.sg/products/water-purifiers/<model>) publish outright purchase prices and an optional annual "CUCKOO+ Care Service Package" price directly — these were usable. However, Cuckoo's promotional "rental plan" / "outright plan" pages (e.g. /promotions/rental-plans/, /outright-plans/) render pricing as image banners that did not yield readable text/numbers to automated fetching, so no monthly rental figures could be verified for this dataset despite Cuckoo clearly offering a rental/instalment model in its marketing. rental_options is left empty for all Cuckoo models pending manual verification (e.g. via phone/sales chat) — flagged in each model's notes. Cuckoo states genuine filters are "never sold online or on other E-Commerce platforms" (https://www.cuckoo.sg/learning-centre/genuine-cuckoo-filters/) — filter replacement is bundled into the CUCKOO+ Care Service Package or CUCKOO+ Self Care Package, so no standalone per-filter price exists to record.