This set includes a straight coupling, a lock nut and a gasket designed for the Bilbao six-way filter valve (Astral 00599), where it ensures a firm and sealed connection of the inlet and outlet piping to the valve body.
Worn or cracked gaskets and couplings tend to be the most common cause of water leakage from the filtration system at the valve location — replacement with a genuine part reliably eliminates this problem.
The genuine parts guarantee precise dimensional tolerances corresponding to the valve manufacturer, thanks to which the joint is tight immediately after installation without the need for additional sealing with Teflon tape or other means.
