Physical description
Manual lever action semi-rotary pump.
In line suction and discharge branches.
Painted silver.
Inscriptions & markings
In relief on front of casing "No 4" at top, "Runwell" at bottom.
Manual lever action semi-rotary pump.
In line suction and discharge branches.
Painted silver.
In relief on front of casing "No 4" at top, "Runwell" at bottom.