{"product_id":"baso-h43aa-12-gas-valve","title":"BASO H43AA-12 Gas Valve","description":"\u003cp\u003eThe \u003cstrong\u003eBASO H43AA-12 Pilot Valve\u003c\/strong\u003e is a 3\/8\" NPT \u003cstrong\u003eautomatic shut-off gas valve\u003c\/strong\u003e designed for mission-critical safety in commercial and residential heating systems. Engineering for versatile application, this \u003cstrong\u003eBaso H43 pilot valve\u003c\/strong\u003e handles both Natural Gas and Liquid Propane (LP) at pressures up to 0.5 PSI. A defining mechanical feature is the 1\/4\" compression coupling \u003cstrong\u003epilot tap\u003c\/strong\u003e located on the right side, which provides an \u003cstrong\u003eopposite gas flow\u003c\/strong\u003e configuration relative to the main valve. This specific geometry is essential for precise manifold alignment where standard flow valves fail to fit. The unit includes an integrated \u003cstrong\u003emanual shut-off\u003c\/strong\u003e, allowing technicians to isolate the pilot line during maintenance without disrupting the main gas supply. As a direct replacement, the H43AA-12 is identical to the H43AA-12C, ensuring seamless field installation. When troubleshooting \u003cstrong\u003estanding pilot systems\u003c\/strong\u003e, this valve provides the reliable 100% shut-off capability required for compliance and equipment longevity.\u003c\/p\u003e\n\n\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with \u003cstrong\u003eNatural Gas and LP\u003c\/strong\u003e applications up to 0.5 PSI.\u003c\/li\u003e\n  \u003cli\u003eFeatures a \u003cstrong\u003eright-hand pilot tap\u003c\/strong\u003e with opposite gas flow for specific manifold configurations.\u003c\/li\u003e\n  \u003cli\u003eIntegrated \u003cstrong\u003emanual shut-off valve\u003c\/strong\u003e simplifies field servicing and diagnostic testing.\u003c\/li\u003e\n  \u003cli\u003eCompact \u003cstrong\u003e3\/8\" NPT inlet\/outlet\u003c\/strong\u003e ports allow for installation in tight equipment cabinets.\u003c\/li\u003e\n  \u003cli\u003eRobust \u003cstrong\u003eautomatic gas shut-off\u003c\/strong\u003e mechanism prevents gas accumulation if the pilot flame is extinguished.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I verify the gas flow direction on the BASO H43AA-12?\u003c\/strong\u003e\u003cbr\u003e\nThis specific model is engineered with a pilot flow that is opposite to the main valve flow. Always check the embossed arrows on the valve body to confirm your manifold layout matches this configuration before installation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan the H43AA-12 be used with a 1\/8\" pilot line?\u003c\/strong\u003e\u003cbr\u003e\nThe standard pilot tap on this unit is a 1\/4\" compression coupling. To use a 1\/8\" pilot tube, a proper brass reducer bushing must be used to ensure a leak-proof seal.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this valve a drop-in replacement for the H43AA-12C?\u003c\/strong\u003e\u003cbr\u003e\nYes, the H43AA-12 and H43AA-12C are technically identical in form, fit, and function, sharing the same physical dimensions and pressure ratings.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"BASO","offers":[{"title":"Default Title","offer_id":35651263500,"sku":"H43AA-12","price":467.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Pic_15da344a-ce45-4188-9bc2-75a1b8c067cb.png?v=1781720991","url":"https:\/\/www.gsistore.com\/en-ca\/products\/baso-h43aa-12-gas-valve","provider":"GSIstore","version":"1.0","type":"link"}