{"product_id":"castair-replacement-air-filter-element-6-6","title":"Castair Replacement Air Filter Element 6\" - 6","description":"\u003ch2\u003eCastair Replacement Air Filter Element — 6\" OD\u003c\/h2\u003e\n\n\u003cp\u003eThis is a genuine Cast Air replacement filter element for Castair industrial air compressors. Keeping the intake air clean is one of the cheapest forms of pump insurance you can buy. A clogged or missing filter element sends abrasive particulates into the cylinder bores, valve seats, and piston rings — the parts that cost the most to replace. Swap this element on schedule and your pump lasts significantly longer. Skip it and you are paying for it in early wear.\u003c\/p\u003e\n\n\u003ch3\u003eWhat This Filter Does\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtects the pump intake:\u003c\/strong\u003e Captures airborne dust, grit, and particulates before they enter the compression chamber.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaintains airflow efficiency:\u003c\/strong\u003e A clean element lets the pump breathe freely at rated capacity. A saturated element starves the intake and increases amp draw.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtends valve life:\u003c\/strong\u003e Contaminated air is the primary cause of premature valve fouling in cast iron compressor pumps.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOEM-fit replacement:\u003c\/strong\u003e Designed specifically for Castair industrial compressor filter housings — drop-in fit, no modification required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFilter Element Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 6 (Castair catalog reference)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 6\" nominal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElement Type:\u003c\/strong\u003e Dry pleated filter element\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Castair industrial compressor filter housings requiring a 6\" OD element\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Pleated filter media with end caps for positive seal in housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eA Note on Manufacturer Specifications\u003c\/h3\u003e\n\u003cp\u003eCastair's published filter element catalog lists elements ranging from the compact Part #04 (OD 2-3\/8\") through larger units like the Part #32DP (OD 5-3\/4\"). The 6\" OD specification for this particular element falls outside the standard flat Solberg sizes published on their major components page at the time of this writing. If you need to confirm exact dimensions — inner diameter, height, and media type — before ordering, call us at 866-217-0063. We can cross-reference your specific filter housing model and confirm the correct fit.\u003c\/p\u003e\n\n\u003ch3\u003eCast Air Filter Element Lineup Context\u003c\/h3\u003e\n\u003cp\u003eCast Air sources filter elements in several configurations to cover their compressor lineup:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlat Solberg elements (Parts #04, #06, #10):\u003c\/strong\u003e Smaller-diameter flat elements for compact single-stage pump intakes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeep cartridge elements (Parts #8D, #10D, #12D, #16D):\u003c\/strong\u003e Cylindrical elements that fit specific pump models including the DD20, PK20\/50, PK60\/65, A2, A4, VA80, C1, C2, and C3 pumps.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-filter elements (Parts #16DP, #20DP, #32DP):\u003c\/strong\u003e Deep cartridge elements with an outer foam pre-filter that traps coarse particles before they reach the main pleated media — used on larger industrial models including the C4U and the S3\/P3\/S4\/P4 series.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThis element (Part #6):\u003c\/strong\u003e 6\" OD element for larger filter housings. Contact us to confirm the correct application for your pump model.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen to Replace Your Filter Element\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEvery 500–1,000 operating hours\u003c\/strong\u003e under normal shop conditions — more frequently in dusty environments (woodworking, concrete work, sandblasting areas).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWhen you see visible discoloration\u003c\/strong\u003e or when the element is clogged enough to restrict airflow noticeably.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnytime the pump is opened for valve or piston service\u003c\/strong\u003e — install a fresh element while you have it apart.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIf the housing has been running without an element\u003c\/strong\u003e — check valve seats and cylinder walls before returning to service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Filter Maintenance Matters on Cast Iron Pumps\u003c\/h3\u003e\n\u003cp\u003eCast Air builds their pumps from cast iron for longevity. Cast iron cylinders are rebuildable, but they are not indestructible. The slow-speed design (most Cast Air pumps run 600–1,000 RPM at the pump) keeps heat and wear low, but that advantage disappears fast if the intake air carries grit. A $20–$40 filter element changed on schedule is the least expensive maintenance item on the entire compressor. It is also the one most shops skip.\u003c\/p\u003e\n\n\u003cp\u003eIf you are running a Cast Air compressor in a dusty environment — a woodshop, a grinding bay, a fabrication floor — consider moving to a pre-filter element (the DP series) or adding an inlet pre-filter wrap. The extra layer of protection pays for itself in extended element life and reduced pump wear.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eThis element is designed for Castair compressor filter housings requiring a 6\" OD element. If you are unsure whether this is the correct part for your specific pump model and filter housing, call 866-217-0063. Give us your pump model number and we will confirm the right element before you order.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCast Air specialist:\u003c\/strong\u003e We stock genuine Cast Air parts and know the lineup. When specs are unclear, we can cross-reference your housing and confirm the right part.\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 Call 866-217-0063. Our team can help you identify the correct element for your pump model and filter housing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGenuine Cast Air parts:\u003c\/strong\u003e OEM elements, not aftermarket substitutes. Correct dimensions and media specification for your housing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo guessing:\u003c\/strong\u003e If you give us your pump model, we will verify fit before you order.\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":53342509826261,"sku":"6","price":29.82,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-replacement-air-filter-element-6-6","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}