I have the Sears gauge.  Just cut off the Schraeder valve and slip the
hose end over the fitting and use a clamp.  The clear hose is connected
to a release valve so you can release the pressure and drain the gas
safely away from the engine.  This is a good safety feature.

If you ever need the Schraeder valve just splice it back on with a piece
of tubing and clamps.
--
Stuart MacMillan
Seattle

'84 Vanagon Westfalia w/2.1
'65 MGB (Daily driver since 1969)
'74 MGB GT (Restoring sloooowly)

Assisting on Restoration (and spending OPM):
'72 MGB GT (Daughter's)
'64 MGB (Son's)

Stripped and gone but their parts live on:
'68 MGB, '73 MGB, '67 MGB GT