{"product_id":"nu-calgon-4050-11-easyseal-direct-inject-refrigerant-leak-sealant-with-uv-dye-1-5-5-ton-systems","title":"Nu-Calgon 4050-11 EasySeal Direct Inject Refrigerant Leak Sealant with UV Dye 1.5 - 5 Ton Systems","description":"\u003ch1\u003eNu-Calgon 4050-11 EasySeal Direct Inject Refrigerant Leak Sealant with UV Dye 1.5 - 5 Ton Systems\u003c\/h1\u003e\n\u003cp\u003eThe Nu-Calgon 4050-11 EasySeal Direct Inject is the ultimate chemical \"brain\" for permanent leak repair in residential and light commercial AC and heat pump systems. Acting as a critical safety monitor for your refrigerant circuit, this professional-grade formula is specifically engineered to find and seal microscopic \"pinhole\" leaks that are impossible to detect with standard electronic sniffers. Designed for systems ranging from 1.5 to 5 tons, it features an integrated UV leak-seeking dye that serves as a visual diagnostic tool. Unlike old-style sealants, the EasySeal Direct Inject uses a proprietary \"Direct Inject\" technology that allows it to travel with the oil and refrigerant without clumping or clogging expansion valves (TXVs), ensuring total system harmony while restoring cooling efficiency.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Part Number 4050-11:\u003c\/strong\u003e Guaranteed OEM-compatible formula that works with all common refrigerants including R-410A, R-22, and R-134a.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced UV Dye Detection:\u003c\/strong\u003e Features a concentrated leak-seeking dye that glows under UV light, allowing technicians to verify the repair or locate larger mechanical breaches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminate Low Charge and Noise Issues:\u003c\/strong\u003e Permanent seal prevents the frequent \"hissing\" of gas leaks and stops the repeated service calls for refrigerant top-offs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Monitoring Technology:\u003c\/strong\u003e Continuously circulates within the system, remaining in a liquid state until it contacts oxygen at a leak site, where it forms a permanent, flexible seal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Inject Application:\u003c\/strong\u003e No pump-down or recovery required; the specialized injector allows for a 5-minute application directly into the low-side service port.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Nu-Calgon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Nu-Calgon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 4050-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e Treats systems from 1.5 Ton to 5 Ton\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e R-410A, R-22, R-134a, R-404A, R-507\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e AC and Heat Pump Systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhysical Form:\u003c\/strong\u003e Liquid (Oil-based carrier)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Rating:\u003c\/strong\u003e Non-clogging to TXVs and Capillary Tubes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.3 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e🛠️ HVAC Depot Pro Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eTake a Picture First —\u003c\/strong\u003e Before injecting the 4050-11, photograph your manifold gauge readings on the low and high sides. Having a visual record of your system pressures is essential for a post-seal diagnostic check to confirm that the \"hunting\" behavior of the compressor has stabilized. Ensure the system is running and the compressor is engaged before injection to allow the sealant to circulate immediately. Always use a UV flashlight to inspect the evaporator and condenser coils after 48 hours of operation to confirm the leak has been successfully addressed by the sealant.\u003c\/p\u003e\n\u003ch2\u003eCross-Reference\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperseded Parts:\u003c\/strong\u003e 4050-08, 4050-05, 4050-10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLegacy Drawing Numbers:\u003c\/strong\u003e EasySeal-SS, UV-Inject-05\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquivalent Brands:\u003c\/strong\u003e Clip-Light Super Seal, Spectroline GLO-STICK, Rectorseal Leak-Seek\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eModel Compatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentral Air Conditioners\u003c\/strong\u003e (Suffixes: 1.5, 2, 2.5, 3, 4, 5 Ton Units)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResidential Heat Pumps\u003c\/strong\u003e (Suffixes: Standard and High-Efficiency Outdoor Units)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuctless Mini-Splits\u003c\/strong\u003e (Suffixes: Multi-Zone and High-Wall Series)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Units\u003c\/strong\u003e (Suffixes: Gas\/Electric and Dual Fuel 13-18 SEER)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"EasySeal","offers":[{"title":"Default Title","offer_id":52451513106795,"sku":"681001405030","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/9683\/9531\/files\/4050-11.jpg?v=1772231585","url":"https:\/\/tophvacparts.com\/products\/nu-calgon-4050-11-easyseal-direct-inject-refrigerant-leak-sealant-with-uv-dye-1-5-5-ton-systems","provider":"HVAC Parts and Equipment Depot Open To Homeowners and Contractors","version":"1.0","type":"link"}