Extension intermediate piece with Pg connection thread and Pg internal thread according to DIN 40430, glass fibre reinforced, with flame retardant, halogen-free. External thread: Pg 16 Internal thread: Pg 21 External thread length: 9 mm Internal thread length: 14 mm Wrench size: 32 with connecting thread sealing ring 987/... (please order separately!) : IP68 Operating temperature range: -40° to 100°C Material: Polyamide Color: light gray RAL: 7035 (similar)