{"product_id":"castair-1-intake-noise-silencer-4-pack-mounted-sa100x4m","title":"Castair 1\" Intake Noise Silencer (4-Pack Mounted) - SA100x4M","description":"\u003ch2\u003eCastair SA100x4M — 1\" Intake Noise Silencer, 4-Pack Mounted\u003c\/h2\u003e\n\n\u003cp\u003eThe Castair SA100x4M is a 4-pack of 1-inch intake noise silencers, sold pre-mounted and ready to install. This is the correct purchase for shops outfitting multiple compressors simultaneously, facilities maintaining a fleet of Cast Air machines, or duplex and tandem compressor installations that require silencers across multiple intake ports at once.\u003c\/p\u003e\n\n\u003cp\u003eEach unit in the SA100x4M pack is a 1-inch NPT silencer — the same acoustic performance as the single SA100, delivered in a volume quantity with factory-mounted hardware. Instead of ordering four individual silencers and sourcing mounting hardware separately, you get four fully assembled units in one order at fleet pricing.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1-Inch NPT Intake Port:\u003c\/strong\u003e Fits compressor pumps with a 1-inch air intake fitting — confirm your pump intake port size before ordering\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4-Pack Quantity:\u003c\/strong\u003e Four silencers per order — suitable for multi-compressor installations, duplex units with four total intake ports, or facility-level stocking\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounted Configuration:\u003c\/strong\u003e Pre-assembled with hardware — arrive ready to bolt on, no additional fabrication required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntake Pulse Damping:\u003c\/strong\u003e Internal acoustic baffling on each unit reduces intake noise on every compression stroke across all four ports\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Airflow Restriction:\u003c\/strong\u003e Does not reduce pump output when filter elements are clean — sized for full intake volume at 1-inch port diameter\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCast Air OEM Specification:\u003c\/strong\u003e Designed for Castair pump intake ports at 1-inch diameter\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eServiceable:\u003c\/strong\u003e Inspect and replace filter elements in all four units periodically to maintain airflow and noise reduction performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e SA100x4M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntake Port Size:\u003c\/strong\u003e 1-inch NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 4 silencers, factory mounted\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Compressor intake noise silencer, 4-pack\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Cast Air (Castair)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrice:\u003c\/strong\u003e $1,030.92\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere the SA100x4M Fits in the Silencer Lineup\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSA100\u003c\/strong\u003e — Single silencer, unmounted ($118.58)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSA100M (C1)\u003c\/strong\u003e — Single silencer, mounted for C1 single-intake pumps ($144.95)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSA100x2M (C2, C3)\u003c\/strong\u003e — 2-pack, mounted for C2\/C3 dual-intake configurations ($289.99)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSA100x4M\u003c\/strong\u003e — 4-pack, mounted, for multi-compressor facilities ($1,030.92). This product.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications for the SA100x4M\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOutfitting a multi-bay shop with four separate compressor stations simultaneously\u003c\/li\u003e\n  \u003cli\u003eFleet maintenance facilities running four or more Cast Air compressors requiring intake noise upgrades\u003c\/li\u003e\n  \u003cli\u003eDuplex compressor installations with four total intake ports across two pump assemblies\u003c\/li\u003e\n  \u003cli\u003eFacility-level noise compliance — reducing compressor intake sound in customer-adjacent or office-adjacent areas\u003c\/li\u003e\n  \u003cli\u003eStocking replacements for a facility with four existing Castair units to have spares on hand when originals need replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003eAuthorized Cast Air dealer since 1991\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree shipping\u003c\/strong\u003e on qualifying orders\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree technical support\u003c\/strong\u003e at 866-217-0063 — we can confirm the SA100x4M's 1-inch intake size matches your specific pump models before you order a 4-pack\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull manufacturer warranty\u003c\/strong\u003e on every Cast Air accessory\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342601642197,"sku":"SA100x4M","price":1030.92,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-1-intake-noise-silencer-4-pack-mounted-sa100x4m","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}