{"product_id":"gasco-552l-1ultra-calibration-gas-oxygen-zero-air-552-l-cga-590-connection-5-accuracy-2","title":"Gasco 552L-1ULTRA - Calibration Gas, Oxygen Zero Air, 552 L, CGA 590 Connection, +\/-5% Accuracy, 2,200 psi Max. Pressure","description":"\u003cp\u003eCalibration Gas, CGA Number CGA 590, Container Type Cylinder, Cylinder Capacity 552 L, Cylinder Diameter 4.5 in, Cylinder Height 25 in, For Use With All OEM Gas Detectors, Gas Mixture Oxygen 20.9 Percent, Gas Type Oxygen, Product Type Calibration Gas, Chemical Formula O2, CAS Number 7782-44-7, Accuracy +\/-5 Percent, Background Gas Nitrogen, Calibration Certificate NIST, Cylinder Material Steel, Outlet Connection Size 3\/4 in, Outlet Connection Type NGT, Standards ISO 9001:2015\u003c\/p\u003e","brand":"Gasco","offers":[{"title":"Default Title","offer_id":43341876723806,"sku":"552L-1ULTRA","price":286.66,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Z-xN0_kcpIx_6d66a456-4d4e-4149-b306-7493dc7afbee.jpg?v=1789514297","url":"https:\/\/nationalboilersupply.com\/products\/gasco-552l-1ultra-calibration-gas-oxygen-zero-air-552-l-cga-590-connection-5-accuracy-2","provider":"National Boiler Supply","version":"1.0","type":"link"}