The size of this thin spanner is 28 mm. The wrench has both open and close-ended sides that make this wrench suitable for the Apeks MTX-R heat exchangers. The wrench also fits the diaphragm retainer (part# 10714110) of Scubapro MK17 Evo.

We recommend to use:

• the open ended side to hold the nuts/heat exchangers in place during hose removal and installation
• the open ended side to torque the nuts/heat exchangers 
• the closed hex side to remove and install the nuts/heat exchangers

Since this tool acts as a torque adapter/multiplier, please check out the "use of torque adapters".

Made from Aluminium 6061 with vibratory tumbled finish.

Regulator and additional tools are not included.