{"product_id":"castair-refrigerated-dryer-replacement-filter-030-micron-rd-030-s","title":"Castair Refrigerated Dryer Replacement Filter .030 Micron - RD.030-S","description":"\u003ch2\u003eCastair Refrigerated Dryer Replacement Filter Element — .030 Micron (RD.030-S)\u003c\/h2\u003e\n\n\u003cp\u003eThe Castair RD.030-S is a .030 micron replacement filter element for Castair refrigerated dryer pre-filter assemblies, S-series housing. The .030 micron rating sits between the finer RD.016-S (.016 micron) and the coarser RD.060-S (.060 micron) in the Castair replacement element lineup. Pre-filtration before a refrigerated dryer protects the stainless steel heat exchanger from oil mist that would otherwise coat the heat transfer surfaces and progressively degrade dew point performance over time.\u003c\/p\u003e\n\n\u003cp\u003eSpecific housing dimensions and compatibility data for the RD.030-S were not published on castair.net at time of writing. Contact 866-217-0063 with your dryer model and pre-filter housing to confirm this is the correct replacement element for your installation.\u003c\/p\u003e\n\n\u003ch3\u003eFilter Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e RD.030-S\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFiltration rating:\u003c\/strong\u003e .030 micron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter type:\u003c\/strong\u003e Coalescing replacement element (S-series housing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Pre-filter for Castair refrigerated compressed air dryers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHousing compatibility:\u003c\/strong\u003e S-series housing — contact 866-217-0063 to confirm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eChoosing the Right Micron Rating\u003c\/h3\u003e\n\u003cp\u003eThe choice between .016, .030, and .060 micron pre-filter elements depends on the oil content of your compressed air and the downstream application.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e.016 micron (RD.016-S):\u003c\/strong\u003e Highest filtration — use when oil carryover from the compressor is a concern, or for applications requiring the cleanest possible air entering the dryer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e.030 micron (RD.030-S, this part):\u003c\/strong\u003e Intermediate — appropriate for most shop applications with properly maintained compressor oil systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e.060 micron (RD.060-S):\u003c\/strong\u003e Coarser pre-filter — use as a first-stage pre-filter upstream of a finer coalescing stage in a two-stage pre-filter arrangement, or for lower-sensitivity applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are using a single pre-filter housing before your dryer, the .030 micron element balances filtration effectiveness with service life for most automotive shop and light industrial applications.\u003c\/p\u003e\n\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReplace when the differential pressure indicator on your filter housing shows element loading\u003c\/li\u003e\n  \u003cli\u003eMore frequent replacement needed in dusty or high-oil-carryover environments\u003c\/li\u003e\n  \u003cli\u003eAnnual replacement minimum in normal shop use — more often in high-cycle operations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePre-Filter System Context\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCastair requires a properly sized pre-filter before all refrigerated dryers — this is a warranty condition, not a recommendation\u003c\/li\u003e\n  \u003cli\u003eCastair's C-CF series (.01 micron coalescing) is used for final point-of-use filtration after the dryer for critical applications like spray painting and instrument air\u003c\/li\u003e\n  \u003cli\u003eThe RD-series elements (RD.016-S, RD.030-S, RD.060-S) protect the dryer heat exchanger — they are pre-dryer elements\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 RD.030-S replacement filter element, .030 micron\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\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 — help selecting the correct micron rating and confirming housing compatibility\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull dryer accessory lineup:\u003c\/strong\u003e All three RD filter ratings plus filter housings, dryer units, and installation accessories\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":53342589518037,"sku":"RD.030-S","price":195.96,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-refrigerated-dryer-replacement-filter-030-micron-rd-030-s","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}