This fitting patented by ESTOAL, is unique to anything else on the market. The outstanding feature is the reinforced Aluminium along the whole length of the fitting, giving it extra strength, avoiding any deformities or defects making the fit perfectly tight and robust thus guaranteeing perfect performance and an extremely user friendly fitting similar to die-cast aluminium fittings.

This fitting is available with the spring loaded inner pivots. The features are the same as the fitting with the springs on the outside but the advantage of the interior fitting is that it can be put in profiles with exterior tubular openings.