1/8" Brass Compression Union The 4LifetimeLines® 1/8″ Brass Compression Union delivers a leak-proof, metal-to-metal seal without flaring—ideal for brake, fuel, oil, or hydraulic hard-line joins. Machined from dezincification-resistant brass, this union stands up to winter salt, moisture, and chemical exposure, ensuring lasting reliability in harsh conditions. Key Benefits Universal Compatibility: Works on 1/8″ steel, copper-nickel, copper-coated steel, PVF-coated, and stainless-steel tubing. Corrosion Resistance: Brass alloy resists pitting and corrosion for maintenance-free performance. Compression Seal: Creates a permanent, leak-free connection—no thread sealant or flare tool required. Winter-Ready Durability: Withstands salted roads and freeze/thaw cycles without degradation. Lifetime Warranty: Backed by 4LifetimeLines® for confidence in every fitting. Installation & Usage Cut & Deburr: Trim tubing squarely and remove all burrs inside and out. Assemble: Slide the brass ferrule onto the tube, then thread the union nut onto your mating port. Torque to Seal: Tighten to the specified torque— the ferrule bites into the tube for a tight, permanent seal. Inspect: Pressurize the system and confirm zero leaks before full operation. Ready for a corrosion-proof, leak-free union?Add the 1/8″ Brass Compression Union to your cart now and complete your hard-line joins with confidence.
