1 piece Drain plug, 1 1/2", integrated O-ring, white, for winterizing swimming pools

This drain plug is specifically designed for winterizing swimming pools in France. It is installed in each return inlet and each vacuum port to hermetically seal the hydraulic circuits against residual water, thus minimizing the risk of frost damage. Made of rigid, non-brittle ABS plastic, it withstands temperatures down to -20°C without any loss of performance. Its 1 1/2" (38.1 mm) diameter meets the most common dimensional standards used by French filter and skimmer manufacturers. Supplied with an included EPDM elastomer O-ring, it guarantees an immediate and lasting seal. Its white color ensures good visibility and discreet integration into equipment rooms. Reference SP1022C — compatible with the seasonal maintenance procedures recommended by Qualipiscine-certified professionals.