{"dataset":"MainBuyer UK price observations","market":"GB","market_name":"United Kingdom","methodology":"Each observation is stored only when MainBuyer has a timestamped checked retailer offer. Missing days are not interpolated or invented. Historical low, high and median figures use recorded in-stock observations only.","observations":[{"currency":"GBP","in_stock":true,"observed_at":"2026-09-17T12:27:58+00:00","price":"229.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0FNRGX51M?maas=maas_adg_api_579551081033313738_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=cae1b3705edded0067696d763ce33b2b&aa_adgroupid=401197e751c787b475c262bef1cef363_PBSEP_!!!affid!!!_118045_&aa_creativeid=dbf1DoxxTRQyq9LrvQFVdoryXxWrcKfWEwf8D_a_bv_a71M_a_aQ_c"}],"product":{"brand":"Waterdrop-UK","evidence_url":"https://www.mainbuyer.com/evidence/products/waterdrop-c1sl-alkaline-mineralized-reverse-osmosis-system-room-temp-b0fnrgx51m/prices","gtin":null,"id":8469,"model_number":null,"name":"Waterdrop C1SL Alkaline Mineralized Reverse Osmosis System, Room Temp","product_url":"https://www.mainbuyer.com/product/waterdrop-c1sl-alkaline-mineralized-reverse-osmosis-system-room-temp-b0fnrgx51m","urn":"MB-AWIN-GB-B0FNRGX51M"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"229.00","historical_low":"229.00","last_observed_at":"2026-09-17T12:27:58+00:00","low_30d":"229.00","low_90d":"229.00","median_price":"229.00","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:27:58+00:00"}}