For opening the front cover to make water use
Or for complex waterway bulkhead drilling through use
It applies to 20.0 MM ~ 23.0MM hole range
Hand tighten the locking ring in particular, widened design, more humane
Containing thicker cushion washer
Material: acrylic
External thread size: G1 / 4
Quantity: 1PCS / only
color: Transparent