Sourcing: philips.com.sg confirms this model is currently sold ("Add to basket" present, no "no longer available" notice, checked via raw HTML fetch 2026-08-06), but the page renders its price client-side — no price figure is present in the page's static HTML/source. Purchase price is therefore sourced from an authorised SG retailer (Harvey Norman) instead, per this project's rule for brand sites lacking a displayed figure. Cross-checked against Courts and Gain City, which also list SGD 818.00 as the regular/standard price (with an active promotional price of SGD 599.00 at both, not recorded here per the standard-price rule). Filter (ADD550/90): SGD 215.00 regular price sourced from Best Denki (SGD 159.00 promotional price also shown there, not recorded). Replacement interval of 12 months matches the figure stated on philips.com.sg itself ("up to 12 months, assuming 6 L/day usage"). Water source/type: this is a portable countertop unit with a detachable 4 L raw-water tank that must be manually refilled — not a direct-pipe model — classified type: tank, water_source: manual_refill. Outputs: product page lists four preset temperatures — ambient, 45°C, 85°C, 95°C — with instant/on-demand heating; no compressor-chilled "cold" function is described, so outputs recorded as [hot, ambient] only (no `cold`). installation_fee_sgd recorded as 0: product page states "Plug and play; no installation required." weight_kg not published on philips.com.sg or the retailer pages checked; recorded null. Certifications: philips.com.sg references testing by "international certification and testing agency SGS/BV" in connection with contaminant-removal claims, but does not name a specific standard, report number, or defined test scope (unlike Velta's HydroSpark+, which cites a specific SGS report number) — per schema this vague reference is recorded in notes only, not as a certification.