When Tight, The Wedging Action Of Sleeve Between Body And Nut Create A Leak Free Connection.Compression Unions Are Used In Low Pressure Application Such As: Air, Oil, And Water. Brass compression union, 1/4, 10/bag Use For Joining 1/4" Copper, Brass, Or Aluminum Tubing In Low-Pressure Applications (Not Brake Lines)..
Requirements For Brake Tubing. – Poly-Armour Is 30X More Resistant To Corrosion – Dot Approved For Hydraulic Brake Systems – Bends Easier Than Standard Steel Tubing – Available In Coils Of 25′ And 50′ – Finished Lines Available For Domestic And Import.