4Pcs Double Nipples Seamless Extension for 1/4" Copper Pipe Air Conditioning Pipe Double Nut Fittings for Air Conditioner Installation (1/4 Zoll 4PCS)

COMPLETE KIT: You receive 4 sets of 1/4" copper tube extenders - each set includes 1 straight through fitting and 2 socket nuts. Ideal for quick extensions or repairs without having to look for additional accessories. Thickened brass, high hardness for shape stability and long service life. Smooth surface, corrosion and rust resistant, wear-resistant, reliable for air conditioning, heating and sanitary applications, even with temperature fluctuations. Precise size: 1/4 inch fitting size. Thread diameter approx. 10.8 mm, nut inner diameter approx. 9.8 mm. Suitable for 6.35 mm or 6 mm copper tubes. Ensures tight and leak-proof connections, reducing the risk of leaks in the system. No soldering required: easy installation – connect by insertion, tighten with a wrench, and it’s done. Saves time and cost, ideal for on-site upgrading and maintenance. Clean, safe and effective even in hard-to-reach areas. Versatile application: for split air conditioners, bathroom and connection pipes, heating circuits, hot/cold water supply, solar systems, cold and hydraulic technology. Perfect for installers and demanding DIYers.