{"product_id":"inogen-one-g4-replacement-column-pair","title":"Inogen One® G4® Replacement Column Pair","description":"\u003c!--\n============================================================\nMCS — INOGEN ONE G4 COLUMN FILTERS (SIEVE COLUMNS, PAIR)\nACCESSORY \/ REPLACEMENT PART\nREVIEW BEFORE PUBLISHING:\n1. Phone 1-800-775-0942 = CTM source number ✓\n2. Pair (2 columns) confirmed from URL slug.\n3. CRITICAL: Sieve columns are internal cartridges that do\nthe oxygen separation. Verify with Inogen whether customer\nDIY replacement is supported on the G4 — some\nmanufacturers require a technician for sieve replacements,\nespecially on portable units.\n4. \"O2 Service Soon\" error message terminology — same as\nthe Inogen At Home sieve columns page. Verify this\nmatches the current G4 firmware\/display.\n5. Replacement interval \"every 12 to 18 months\" matches the\nInogen At Home columns page — verify against Inogen's\nofficial documentation for the G4 specifically.\n6. No product photo — strongly recommend adding one.\n============================================================\n--\u003e\n\n\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.65; font-size: 19px;\"\u003e\n\n\u003c!-- Lead --\u003e\n\u003cp style=\"margin: 12px 0;\"\u003eThe \u003cstrong\u003eremovable sieve columns\u003c\/strong\u003e for the Inogen One G4 contain the sieve filters that separate inert gases from room air and concentrate it into medical-grade oxygen. Replace them every 12 to 18 months as a general rule to ensure your machine is producing the correct concentration of oxygen.\u003c\/p\u003e\n\n\u003c!-- Compatibility --\u003e\n\u003cdiv style=\"border-left: 6px solid #2196f3; background: #e3f2fd; padding: 18px 20px; margin: 20px 0; border-radius: 0 14px 14px 0;\"\u003e\n\u003cstrong style=\"display: block; margin-bottom: 6px; color: #0056b3;\"\u003eCompatibility\u003c\/strong\u003e\n\u003cp style=\"margin: 0;\"\u003eDesigned specifically for the Inogen One G4 portable oxygen concentrator. \u003cstrong\u003eNot interchangeable\u003c\/strong\u003e with G5, At Home, or other Inogen models — each unit has differently sized columns.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!-- What's in this pack? --\u003e\n\u003cdiv style=\"border-left: 6px solid #2196f3; background: #e3f2fd; padding: 18px 20px; margin: 20px 0; border-radius: 0 14px 14px 0;\"\u003e\n\u003cstrong style=\"display: block; margin-bottom: 6px; color: #0056b3;\"\u003eWhat's in this pack?\u003c\/strong\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003e2 sieve columns\u003c\/strong\u003e — a complete set for replacing both columns at once. (Sieve columns work in alternating cycles, so both should be replaced together to maintain proper oxygen output.)\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!-- Replacement schedule --\u003e\n\u003cdiv style=\"border-left: 6px solid #2196f3; background: #e3f2fd; padding: 18px 20px; margin: 20px 0; border-radius: 0 14px 14px 0;\"\u003e\n\u003cstrong style=\"display: block; margin-bottom: 6px; color: #0056b3;\"\u003eWhen to replace\u003c\/strong\u003e\n\u003cp style=\"margin: 0 0 8px;\"\u003eReplace the columns every \u003cstrong\u003e12 to 18 months\u003c\/strong\u003e as a general rule.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eEarlier replacement may be needed depending on operating conditions. Your G4 will alert you with the \u003cstrong\u003e\"O2 Service Soon\"\u003c\/strong\u003e error on the display when the columns need attention.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!-- What sieve columns do --\u003e\n\u003ch2 style=\"font-size: 1.5em; line-height: 1.25; margin: 32px 0 12px; border-bottom: 1px solid #e8e8e8; padding-bottom: 8px; color: #0056b3; font-weight: 700; letter-spacing: 0; text-transform: none; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\"\u003eWhat sieve columns do\u003c\/h2\u003e\n\u003cp style=\"margin: 12px 0;\"\u003eInside an oxygen concentrator, sieve columns are filled with a molecular-sieve material (typically zeolite) that adsorbs nitrogen from compressed room air. What passes through is the concentrated oxygen your machine delivers. Over time, the sieve material loses its capacity to bind nitrogen efficiently — which is why these columns need periodic replacement to maintain the proper oxygen concentration.\u003c\/p\u003e\n\n\u003c!-- Phone CTA callout --\u003e\n\u003cdiv style=\"border: 1px solid #e1e1e1; border-left: 6px solid #0056b3; border-radius: 10px; padding: 20px; background: #f8f9fa; margin: 24px 0; box-shadow: 0 2px 5px rgba(0,0,0,0.05);\"\u003e\n\u003cstrong style=\"display: block; margin-bottom: 8px; font-size: 1.1em; color: #0056b3;\"\u003eNot sure if you need new columns?\u003c\/strong\u003e\n\u003cp style=\"margin: 0;\"\u003eCall 1-800-775-0942 with your G4's error code — we'll help you confirm whether columns are the right replacement part.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!-- Customer reviews snapshot --\u003e\n\u003cp style=\"text-align: center; margin: 32px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0471\/0128\/0415\/files\/Screen_Shot_2020-12-04_at_7.17.19_PM.png?v=1607131110\u0026amp;width=700\" alt=\"Main Clinic Supply customer reviews snapshot\" style=\"max-width: 100%; height: auto; border-radius: 14px; display: inline-block;\"\u003e\n\u003c\/p\u003e\n\n\u003c!-- About MCS --\u003e\n\u003ch2 style=\"font-size: 1.5em; line-height: 1.25; margin: 32px 0 12px; border-bottom: 1px solid #e8e8e8; padding-bottom: 8px; color: #0056b3; font-weight: 700; letter-spacing: 0; text-transform: none; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\"\u003eAbout Main Clinic Supply\u003c\/h2\u003e\n\u003cp style=\"margin: 12px 0;\"\u003eWe're based in Rochester, Minnesota — home of the world-famous Mayo Clinic. We deliver free to all Mayo Clinic hospitals and local hotels. With FedEx's strong presence in Rochester, our family-owned business is able to ship late into the evening.\u003c\/p\u003e\n\n\u003cp style=\"margin: 12px 0;\"\u003eInspired by Mayo Clinic's values, we prioritize helping people over making profits — embodying Dr. Mayo's 1910 mission statement: \u003cem\u003e\"The needs of the patient come first.\"\u003c\/em\u003e\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Inogen","offers":[{"title":"Default Title","offer_id":54277419466863,"sku":"tcp1789233162143","price":92.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0723\/3847\/3071\/files\/inogen-one-g4-replacement-column-pair_1.jpg?v=1789233166","url":"https:\/\/www.dearsangry.shop\/products\/inogen-one-g4-replacement-column-pair","provider":"Northbay Supply","version":"1.0","type":"link"}