{"product_id":"https-www-kippkitts-com-products-parker-5500-series-self-sealing-brass-quick-disconnect-coupling-pair-1-4-odf-copper-750-psi-r32-r290-r454b-compatible-low-loss-refrigerant-coupling-utm_source-copytopasteboard-utm_medium-product-links-utm_content-web","title":"https:\/\/www.kippkitts.com\/products\/parker-5500-series-self-sealing-brass-quick-disconnect-coupling-pair-1-4-odf-copper-750-psi-r32-r290-r454b-compatible-low-loss-refrigerant-coupling?utm_source=copyToPasteBoard\u0026utm_medium=product-links\u0026utm_content=web","description":"\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003ePRODUCT DESCRIPTION\u003c\/h2\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eOverview\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe Rectorseal NoKink (66731) is a 36-inch flexible refrigerant line connector designed to bridge the gap between a rigid in-wall copper refrigerant line and a wall-mounted mini-split evaporator unit. The hose body is flexible along its full length, with 3-inch copper stubs at each end that accept either silver-solder or flare connections — giving the installer a choice of termination method without compromising joint integrity. The copper stubs are long enough to support a standard flare tool without having to work against the flex body.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe NoKink is purpose-built for the tight-radius routing problem that occurs at the wall penetration when mounting a mini-split evaporator: the rigid copper line exiting the wall must transition to the unit's service ports, often at an acute angle and with little clearance. A rigid elbow or hand-bent copper tube at this location is prone to kinking, which collapses the bore, restricts refrigerant flow, and creates a mechanical weak point that can crack under vibration. The NoKink eliminates that failure mode entirely by making the transition section inherently flexible.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eOperating pressure rating is 800 PSI, which comfortably exceeds the high-side service pressures of all mainstream refrigerants in use today, including R-410A (~400 PSI), R-32 (~550 PSI), and next-generation lower-GWP refrigerants such as R-290 and R-454B. The 1\/4\" bore size corresponds to the liquid line in a standard mini-split circuit. For Kippkitts 1 kW air-to-air build assemblies, this connector is the specified interface fitting at the evaporator liquid-line service port, enabling clean evaporator swap-out without having to disturb the in-wall copper run.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eKey Specifications\u003c\/h3\u003e\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\"\u003eParameter\u003c\/th\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eRectorseal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e\u003cstrong\u003eModel \/ SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e66731\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e\u003cstrong\u003eProduct Line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eNoKink Flexible Refrigerant Line Connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e\u003cstrong\u003eNominal Tube Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e1\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e\u003cstrong\u003eOverall Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e36 in (914 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e\u003cstrong\u003eCopper Stub Length (each end)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e3 in (76 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e\u003cstrong\u003eOperating Pressure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e800 PSI maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e\u003cstrong\u003eConnection Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eSilver solder or flare (both ends)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e\u003cstrong\u003eRefrigerant Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eSuitable for all common HVAC refrigerants within rated pressure (R-410A, R-32, R-454B, R-290, R-134a, and others)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eMini-split evaporator \/ condenser liquid-line connection; wall-exit routing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e\u003cstrong\u003eInsulation Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eYes — per local code (not supplied)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e\u003cstrong\u003ePackaging Qty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e1 unit (sold individually); 4 per case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e\u003cstrong\u003eCountry of Manufacture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eUSA (Houston, TX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eIntegration Notes\u003c\/h3\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLine assignment:\u003c\/strong\u003e The 1\/4\" size is the liquid line in a standard mini-split refrigerant circuit. The suction line (larger bore, typically 3\/8\" or 1\/2\") requires a separate NoKink in the appropriate size (Rectorseal 66733 for 3\/8\", 66737 for 1\/2\").\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eConnection choice — flare vs. silver solder:\u003c\/strong\u003e The 3\" copper stubs are long enough for a standard flare tool. Flare connections are the preferred field method for serviceability; silver solder is appropriate where a permanent brazed joint is specified. Do not mix connection types at the two ends of the same fitting without confirming compatibility with your system's service and pressure-test protocol.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eKippkitts 1 kW air-to-air assembly:\u003c\/strong\u003e In the Kippkitts evaporator module, this NoKink is the specified liquid-line interface fitting at the evaporator service port. It allows the evaporator to be demounted from the wall bracket and swung clear without disconnecting the in-wall copper run — recovering refrigerant charge is still required, but the wall penetration does not need to be disturbed. Ensure the NoKink is routed with enough slack to allow the evaporator to reach its service position.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e Local mechanical codes universally require refrigerant line insulation to prevent condensation and heat gain. Insulate the full length of the NoKink with closed-cell foam pipe insulation of appropriate wall thickness for the ambient dew point in your installation environment. Insulation is not included.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMinimum bend radius:\u003c\/strong\u003e Do not collapse or kink the flex body during installation; the product eliminates field-induced kinking but the hose itself has a minimum bend radius. Route with smooth curves only. Avoid sharp folds or pinching under the evaporator mounting bracket.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003ePressure testing:\u003c\/strong\u003e The 800 PSI rating supports standard nitrogen pressure-test procedures for all listed refrigerants. Follow your system OEM's specified test pressure, which will be well within this limit.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSibling SKUs:\u003c\/strong\u003e 3\/8\" (66733), 1\/2\" (66737), 5\/8\" (66735) are available separately for suction-line applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eIncluded Accessories\u003c\/h3\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eNone. Insulation, flare tools, and solder\/flux are field-supplied.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"kippkitts","offers":[{"title":"Default Title","offer_id":47242217980075,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/1037\/files\/IMG_0063.png?v=1781717926","url":"https:\/\/www.kippkitts.com\/products\/https-www-kippkitts-com-products-parker-5500-series-self-sealing-brass-quick-disconnect-coupling-pair-1-4-odf-copper-750-psi-r32-r290-r454b-compatible-low-loss-refrigerant-coupling-utm_source-copytopasteboard-utm_medium-product-links-utm_content-web","provider":"kippkitts","version":"1.0","type":"link"}