{"product_id":"castair-replacement-air-filter-element-for-g11-rotary-pump-rafg11","title":"Castair Replacement Air Filter Element For G11 Rotary Pump RAFG11","description":"\u003ch2\u003eCastair Replacement Air Filter Element for G11 Rotary Pump (RAFG11)\u003c\/h2\u003e\n\n\u003cp\u003eThe Castair RAFG11 is the paper air filter element for the G11 rotary screw pump air end. Dimensions: ID 2-5\/8\", OD 3-7\/8\", HGT 3-1\/8\". The G11 air end is used in the 5 to 15 HP range of Castair rotary screw compressors as an alternative to the D-series and P75 air ends. If your unit uses the G11, the RAFG11 is the only correct replacement filter — the dimensions are specific to this air end housing and are not interchangeable with RAFD3-4, RAFD6-62, or P75-series elements. At $34.73, the RAFG11 is priced slightly higher than some other Castair filter elements, reflecting the G11 geometry.\u003c\/p\u003e\n\n\u003ch3\u003eFilter Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e RAFG11\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter type:\u003c\/strong\u003e Paper element, dry-type\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside diameter (ID):\u003c\/strong\u003e 2-5\/8\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside diameter (OD):\u003c\/strong\u003e 3-7\/8\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight (HGT):\u003c\/strong\u003e 3-1\/8\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e G11 rotary pump air end\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHorsepower range:\u003c\/strong\u003e 5-15 HP Castair rotary screw compressors with G11 air end\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eG11 Air End Identification\u003c\/h3\u003e\n\u003cp\u003eCastair uses both G-series and D-series air ends across their rotary screw lineup. If your compressor model ends in \"G11\" (e.g., R738VG11), you have a G11 air end and need the RAFG11 filter. If your model ends in \"75\" or uses the D-series designation, you need a different filter. Check the compressor nameplate or your original documentation if unsure — call us at 866-217-0063 and we can confirm based on your model number.\u003c\/p\u003e\n\n\u003ch3\u003eAir End Filter Cross-Reference\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRAFG11 (this part):\u003c\/strong\u003e G11 air end — 5-15 HP — ID 2-5\/8\", OD 3-7\/8\", HGT 3-1\/8\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRAFD3-4:\u003c\/strong\u003e D3, D31, D4 — 5-10 HP — ID 2-7\/8\", OD 4-5\/8\", HGT 2-7\/16\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRAFD6-62:\u003c\/strong\u003e D6, D62 — ID 4-3\/4\", OD 6-1\/8\", HGT 2-7\/8\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRAFD10:\u003c\/strong\u003e D10 — 25-40 HP — ID 6-3\/8\", OD 9-1\/2\", HGT 5\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRAFD16:\u003c\/strong\u003e D16 — 50-60 HP — ID 6-3\/8\", OD 9-1\/2\", HGT 7-7\/8\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePM Kit\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMKG11:\u003c\/strong\u003e G11 air end PM kit — includes 2 RAFG11 air filters, 4 oil filters, 1 separator filter, 5 gal CAST-LUBE synthetic oil (saves 10% vs. individual purchases, covers 5-15 HP G11 range)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMaintenance Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eInspect at each oil change — more frequently in dusty environments\u003c\/li\u003e\n  \u003cli\u003eThe G11 air end is a higher-output design — do not let filter maintenance slide on machines running at or near 100% duty\u003c\/li\u003e\n  \u003cli\u003eOil filter for G11: ROFD3-4-G11 spin-on\u003c\/li\u003e\n  \u003cli\u003eSeparator filter: RSFD3-4-6-G11-P75 spin-on\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat Is in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Castair RAFG11 paper air filter element\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\n\u003cstrong\u003eCastair authorized:\u003c\/strong\u003e OEM replacement element with confirmed G11 dimensions\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 tech support:\u003c\/strong\u003e 866-217-0063 — we can confirm G11 vs. D-series identification from your model number\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMKG11 PM kit available:\u003c\/strong\u003e Full G11 maintenance kit in stock\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":53342584307925,"sku":"RAFG11","price":63.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/360_F_473254957_bxG9yf4ly7OBO5I0O5KABlN930GwaMQz_ba227eea-0720-4935-a642-320bfb1ad38a.jpg?v=1772652861","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-replacement-air-filter-element-for-g11-rotary-pump-rafg11","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}