{"product_id":"amerex-hose-assembly-1-2-x-0-209-for-a411-20lb-abc-extinguisher-11221","title":"Amerex Hose Assembly (1\/2\" x 0.209\") for A411 20LB ABC Extinguisher - 11221","description":"\u003cbody\u003e\n\n\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n\u003ctitle\u003eAmerex 11221 Hose Assembly | 20 lb. ABC Series | Part No. 11221-P001\u003c\/title\u003e\n\u003cstyle\u003e\n  .product-section {\n    max-width: 100%;\n    margin: 2rem 0;\n    font-family: Arial, sans-serif;\n    color: #333;\n  }\n  .accordion-item {\n    border-bottom: 1px solid #ddd;\n  }\n  .accordion-header {\n    display: flex;\n    justify-content: space-between;\n    padding: 2rem 0;\n    cursor: pointer;\n    background: none;\n    border: none;\n    width: 100%;\n    text-align: left;\n    color: #333;\n  }\n  .accordion-header:hover,\n  .accordion-header:focus {\n    color: #333;\n    background: none;\n    outline: none;\n  }\n  .accordion-title {\n    font-size: 1.5rem;\n    font-weight: 500;\n  }\n  .accordion-icon {\n    font-size: 1.5rem;\n  }\n  .accordion-item.active .accordion-icon {\n    transform: rotate(180deg);\n  }\n  .accordion-content {\n    max-height: 0;\n    overflow: hidden;\n  }\n  .accordion-item.active .accordion-content {\n    max-height: none;\n  }\n  .accordion-content-inner {\n    font-size: 1.4rem;\n    line-height: 1.7;\n    color: #555;\n    padding-bottom: 2rem;\n  }\n  .accordion-content-inner p {\n    margin: 0 0 1rem 0;\n  }\n  .accordion-content-inner ul {\n    margin: 0 0 1rem 0;\n    padding-left: 2rem;\n  }\n  .accordion-content-inner h3 {\n    font-size: 1.4rem;\n    font-weight: 600;\n    color: #333;\n    margin: 1.5rem 0 0.5rem 0;\n  }\n  .specs-table {\n    width: 100%;\n    border-collapse: collapse;\n  }\n  .specs-table th,\n  .specs-table td {\n    border: 1px solid #ddd;\n    padding: 0.75rem 1rem;\n    font-size: 1.4rem;\n    text-align: left;\n  }\n  .specs-table th {\n    background-color: #f5f5f5;\n    font-weight: 600;\n    color: #333;\n  }\n\u003c\/style\u003e\n\n\n\n\u003cdiv class=\"product-section\"\u003e\n\n  \u003c!-- Section 1: Product Overview --\u003e\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\n      \u003cspan class=\"accordion-title\"\u003eProduct Overview\u003c\/span\u003e\n      \u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\n    \u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\n      \u003cdiv class=\"accordion-content-inner\"\u003e\n        \u003cp\u003eThe Amerex 11221 Hose Assembly is a precision-engineered high-velocity discharge conduit designed exclusively for the Amerex A411 20 lb. ABC Dry Chemical fire extinguisher. In the mechanical architecture of a stored-pressure unit, the hose assembly is the final delivery system. It is responsible for transforming a high-pressure internal charge into a controlled, high-velocity stream of monoammonium phosphate. For the A411 model, which carries a massive 10-A:120-B:C UL rating, the 11221-P001 is the only conduit capable of managing the high-flow dry chemical discharge required to suppress large-scale Class B liquid fires and deep-seated Class A hazards.\u003c\/p\u003e\n        \u003cp\u003eA 20 lb. extinguisher is a heavy-duty tool, and its effectiveness is entirely dependent on discharge nozzle integrity. Utilizing a genuine OEM 11221 hose ensures that the discharge orifice remains perfectly calibrated to the valve's output, preventing the agent clogging or pressure drops associated with generic, low-diameter alternatives that compromise 120-B:C rating integrity.\u003c\/p\u003e\n\n        \u003ch3\u003ePrecision 0.209\" ID Discharge Tubing\u003c\/h3\u003e\n        \u003cp\u003eThe 11221 features a specific 0.209\" internal diameter discharge tubing profile mathematically tuned to the volume and pressure of the A411 cylinder. This precise dimension maintains laminar flow, reduces internal friction, and maximizes the effective stream reach of 15 to 21 feet required for operator safety.\u003c\/p\u003e\n\n        \u003ch3\u003eReinforced Elastomeric Construction\u003c\/h3\u003e\n        \u003cp\u003eDuring activation, the hose is subjected to a sudden, high-pressure surge of up to 240 PSI. The hose is constructed from reinforced, high-tensile rubber with a burst pressure safety margin significantly higher than the operating pressure, preventing hose whipping or structural failure during the critical seconds of a fire emergency.\u003c\/p\u003e\n\n        \u003ch3\u003eNon-Conductive Safety\u003c\/h3\u003e\n        \u003cp\u003eAs part of its Class C rating, the discharge assembly is designed to prevent electrical paths. This ensures that if an operator accidentally makes contact with energized electrical equipment while discharging the agent, the hose will not act as a conductor.\u003c\/p\u003e\n\n        \u003ch3\u003eWeather-Resistant Durability\u003c\/h3\u003e\n        \u003cp\u003eThe 11221 is crafted from UV-stabilized materials that resist dry rot and ozone cracking, ensuring the hose remains flexible across a temperature range of -65°F to +120°F. This makes it well-suited for 20 lb. units mounted in outdoor brackets.\u003c\/p\u003e\n\n        \u003ch3\u003eBrass-to-Valve Integrity\u003c\/h3\u003e\n        \u003cp\u003eThe assembly features a precision-machined brass coupling that resists galling when threaded into the extinguisher's valve body, ensuring a liquid-tight seal that won't seize over the 12-year service life of the cylinder.\u003c\/p\u003e\n\n        \u003ch3\u003eUL Listing Continuity\u003c\/h3\u003e\n        \u003cp\u003eUnder NFPA 10, an extinguisher's UL listing is only valid if it is maintained with the specific parts it was tested with. Utilizing the OEM Amerex hose replacement preserves the monoammonium phosphate flow rate and prevents a red-tag during a fire marshal inspection.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Section 2: Technical Specifications --\u003e\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\n      \u003cspan class=\"accordion-title\"\u003eTechnical Specifications\u003c\/span\u003e\n      \u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\n    \u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\n      \u003cdiv class=\"accordion-content-inner\"\u003e\n        \u003ctable class=\"specs-table\"\u003e\n          \u003cthead\u003e\n            \u003ctr\u003e\n              \u003cth\u003eFeature\u003c\/th\u003e\n              \u003cth\u003eDetails\u003c\/th\u003e\n            \u003c\/tr\u003e\n          \u003c\/thead\u003e\n          \u003ctbody\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eManufacturer\u003c\/td\u003e\n              \u003ctd\u003eAmerex Corporation\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003ePart Number\u003c\/td\u003e\n              \u003ctd\u003e11221-P001\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eCompatible Model\u003c\/td\u003e\n              \u003ctd\u003eAmerex A411 (20 lb. ABC)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eHose Dimensions\u003c\/td\u003e\n              \u003ctd\u003e1\/2\" OD x 0.209\" ID\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eHose Material\u003c\/td\u003e\n              \u003ctd\u003eReinforced Elastomeric (UV-Stabilized)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eCoupling Material\u003c\/td\u003e\n              \u003ctd\u003eCorrosion-Resistant Brass\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eNozzle Type\u003c\/td\u003e\n              \u003ctd\u003eHigh-Flow Discharge Nozzle\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eIncludes\u003c\/td\u003e\n              \u003ctd\u003eHose, Brass Coupling, Discharge Nozzle\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eCompliance\u003c\/td\u003e\n              \u003ctd\u003eUL Listed, NFPA 10, 12-Year Hydrostatic Testing\u003c\/td\u003e\n            \u003c\/tr\u003e\n          \u003c\/tbody\u003e\n        \u003c\/table\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Section 3: Installation \u0026 Compliance --\u003e\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\n      \u003cspan class=\"accordion-title\"\u003eInstallation \u0026amp; Compliance\u003c\/span\u003e\n      \u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\n    \u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\n      \u003cdiv class=\"accordion-content-inner\"\u003e\n        \u003ch3\u003eThe Annual Stretch Audit\u003c\/h3\u003e\n        \u003cp\u003eDuring every annual inspection, the technician must stretch the hose to check for microscopic cracks near the couplings. A visual check of the discharge nozzle geometry is also mandatory to ensure that debris has not created a blockage that would cause a pressure spike upon actuation.\u003c\/p\u003e\n\n        \u003ch3\u003e12-Year Hydrostatic Hose Testing\u003c\/h3\u003e\n        \u003cp\u003eUnder NFPA 10, the hose assembly must be removed and tested or replaced during the cylinder's 12-year hydrostatic test. Many facility managers choose to replace the assembly entirely at this interval to ensure maximum flexibility and reliability.\u003c\/p\u003e\n\n        \u003ch3\u003eThread Sealant Protocol\u003c\/h3\u003e\n        \u003cp\u003eWhen re-installing a 11221-P001 assembly, a small amount of Amerex-approved thread sealant should be applied to the brass coupling. This ensures a vibration-resistant, gas-tight seal that prevents pressure bleed during long-term storage in high-vibration industrial environments.\u003c\/p\u003e\n\n        \u003ch3\u003eNozzle Orientation\u003c\/h3\u003e\n        \u003cp\u003eThe discharge nozzle is ergonomically designed for a pistol grip hold. Technicians should ensure the nozzle is securely clipped into the extinguisher's hose strap so that it is oriented for an immediate, intuitive grab by the operator.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Section 4: FAQ --\u003e\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\n      \u003cspan class=\"accordion-title\"\u003eFAQ\u003c\/span\u003e\n      \u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\n    \u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\n      \u003cdiv class=\"accordion-content-inner\"\u003e\n        \u003ch3\u003eCan I use the 11221 on a 10 lb. Amerex extinguisher?\u003c\/h3\u003e\n        \u003cp\u003eNo. While the threads might match, the 11221 is specifically tuned for the 20 lb. A411. Using it on a smaller unit will result in an incorrect discharge time and a distorted stream reach, effectively compromising the 120-B:C rating integrity.\u003c\/p\u003e\n\n        \u003ch3\u003eHow do I know if my hose needs to be replaced?\u003c\/h3\u003e\n        \u003cp\u003eIf you see any crazing (spider-web cracks), exposed reinforcement braids, or if the hose has become stiff, it must be replaced immediately. A stiff hose is a leading indicator of elastomeric failure.\u003c\/p\u003e\n\n        \u003ch3\u003eDoes this assembly include the nozzle?\u003c\/h3\u003e\n        \u003cp\u003eYes. The Amerex 11221-P001 assembly is a complete unit including the reinforced hose, the brass valve coupling, and the high-flow discharge nozzle.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript\u003e\ndocument.addEventListener('DOMContentLoaded', function() {\n  const headers = document.querySelectorAll('.accordion-header');\n  headers.forEach(header =\u003e {\n    header.addEventListener('click', function() {\n      this.parentElement.classList.toggle('active');\n    });\n  });\n});\n\u003c\/script\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Amerex 11221 Hose Assembly | 20 lb. ABC Series\",\n  \"description\": \"UL Listed complete reinforced elastomeric hose assembly for the Amerex A411 20 lb. ABC dry chemical fire extinguisher. 1\/2 inch OD x 0.209 inch ID precision-tuned discharge tubing with corrosion-resistant brass coupling and high-flow discharge nozzle. UV-stabilized, non-conductive, rated -65 degrees F to +120 degrees F. Required for NFPA 10 UL listing continuity. 12-year hydrostatic testing compliance.\",\n  \"sku\": \"11221-P001\",\n  \"mpn\": \"11221-P001\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Amerex\"\n  },\n  \"manufacturer\": {\n    \"@type\": \"Organization\",\n    \"name\": \"Amerex Corporation\"\n  },\n  \"category\": \"Fire Suppression Equipment\",\n  \"additionalProperty\": [\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Part Number\",\n      \"value\": \"11221-P001\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Compatible Model\",\n      \"value\": \"Amerex A411 (20 lb. ABC)\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Hose Dimensions\",\n      \"value\": \"1\/2 inch OD x 0.209 inch ID\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Hose Material\",\n      \"value\": \"Reinforced Elastomeric (UV-Stabilized)\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Coupling Material\",\n      \"value\": \"Corrosion-Resistant Brass\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Nozzle Type\",\n      \"value\": \"High-Flow Discharge Nozzle\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Compliance\",\n      \"value\": \"UL Listed, NFPA 10, 12-Year Hydrostatic Testing\"\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\n\u003c\/body\u003e","brand":"Amerex","offers":[{"title":"Default Title","offer_id":47425259438245,"sku":null,"price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/5605\/8021\/files\/Amerex_Hose_Assembly_1_2_x_0.209_for_A411_20LB_ABC_Extinguisher_-_11221_2077dabb-af28-4b15-bd4e-7023f4596a1c.webp?v=1771286453","url":"https:\/\/profireandsafety.com\/products\/amerex-hose-assembly-1-2-x-0-209-for-a411-20lb-abc-extinguisher-11221","provider":"Pro Fire and Safety","version":"1.0","type":"link"}