{"product_id":"castair-3-4x3-4-compression-adaptor-ca3434","title":"Castair 3\/4x3\/4\" Compression Adaptor CA3434","description":"\u003ch2\u003eCastair CA3434 — 3\/4\" x 3\/4\" Compression Adaptor\u003c\/h2\u003e\n\u003cp\u003eThe Castair CA3434 is a 3\/4-inch x 3\/4-inch compression fitting adaptor for air compressor discharge plumbing. At $14.63, this is a plumbing component used in Castair compressor discharge lines, check valve installations, and shop air piping where 3\/4-inch compression tube connections are required. The 3\/4-inch size is common on larger commercial and industrial Castair compressors where higher CFM output requires larger-bore discharge tubing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eResearch note:\u003c\/strong\u003e Castair does not publish detailed spec sheets for individual fitting accessories on their public website. Contact us to confirm the correct fitting for your specific Castair compressor model.\u003c\/p\u003e\n\n\u003ch2\u003eWhat This Fitting Is For\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDischarge plumbing:\u003c\/strong\u003e Connecting 3\/4-inch compression tube runs in pump discharge or tank inlet plumbing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLarger compressor applications:\u003c\/strong\u003e 3\/4-inch fittings are typically used on commercial and industrial compressors with higher CFM output where the larger bore reduces flow restriction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCheck valve installation:\u003c\/strong\u003e Works with Castair's CTD3434 in-tank check valve (3\/4 x 3\/4 compression) for tank discharge connections\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaintenance and repair:\u003c\/strong\u003e Replacement for damaged or leaking 3\/4-inch compression adaptors in existing installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompression Fitting Basics\u003c\/h2\u003e\n\u003cp\u003eCastair uses compression fittings on their copper discharge tubes and unloader plumbing because they're reliable, leak-free, and serviceable without special tools. Compression fittings use a ferrule (sleeve) that bites into the tube OD when tightened, creating a positive seal on copper or steel tubing. The CA3434 adaptor connects two 3\/4-inch compression tube ends.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Castair Compression Adaptors\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCA1212\u003c\/td\u003e\n\u003ctd\u003e1\/2\" x 1\/2\"\u003c\/td\u003e\n\u003ctd\u003e$13.09\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCA3434\u003c\/td\u003e\n\u003ctd\u003e3\/4\" x 3\/4\"\u003c\/td\u003e\n\u003ctd\u003e$14.63\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eRelated Check Valves with Compression Fittings\u003c\/h2\u003e\n\u003cp\u003eCastair's in-tank check valves use compression fittings rated for 500 PSIG at 400°F with a 1\/8-inch side port for unloader connections. The matching check valve for 3\/4-inch compression is CTD3434. If you're replacing a check valve rather than just an adaptor, you likely need the CTD3434.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify your tube OD is 3\/4-inch — measure the actual tube, not the pipe thread size\u003c\/li\u003e\n  \u003cli\u003eCompression fittings require square-cut, burr-free tube ends for proper sealing\u003c\/li\u003e\n  \u003cli\u003eHand-tight plus 1.25 turns is the standard torque for copper tube compression fittings\u003c\/li\u003e\n  \u003cli\u003eInspect the tube end for corrosion or deformation before installing a replacement fitting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h2\u003e\n\u003cp\u003eWe stock Castair compressor parts and accessories and can help you identify the correct fitting for your application. Free shipping on qualifying orders. Free tech support at 866-217-0063. Full manufacturer warranty.\u003c\/p\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":53342530306261,"sku":"CA3434","price":26.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/CompressionAdapter.jpg?v=1772652609","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-3-4x3-4-compression-adaptor-ca3434","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}