Facom J.18LA 3/8" Dr 18mm Long Series Socket 12pt RP01140 52 in SAE/Metric/TORX Metric Fastener

52 in SAE/Metric/TORX Metric Fastener size 22 mm

this will be your heater return

Excellent pressures

Outside diameter 32mm

Narrower profile when used in a ratcheting wrench than standard ratchets

Facom J.18LA 3/8" Dr 18mm Long Series Socket 12pt RP01140 52 in SAE/Metric/TORX Metric FastenerOGV profile: more powerful tightening, preserves fasteners. Long reach sockets for long recess or thread access. Finish: bright chrome. The OGV profile is achieved by a succession of curves instead of flats found in conventional sockets. Larger contact area between socket and the fastener minimises stress. Torque is transmitted through the fastener flats instead of the corners. Stress concentration in the corners is eliminated. Overall length 60mm