The above picture shows the GIANT GX identification number location.
THE NUMBER SHOWN IN THE PICTURE IS GXRH2424-211.
What do all the numbers mean?
GX is the series of this pump.
R indicates the pump has a regulator verses an unloader.
Q- What is the difference between pumps with a Regulator or Unloader?
A- The regulator type keeps pressure on the pump head when the trigger gun is released. This is not as safe as an unloader style. The unloader type removes the pressure from the pump head when the trigger grun is released to the closed position.
Q- Can I replace my pump having a regulator with one that has an unloader?
A- Yes, THERE IS A price difference.
Select a pump without the R in the model number, i.e. GX2424 (with unloader) vs GXR2424 (with regulator).
H or V indicating Horizontal or Vertical mounting.
2424 tells us that the pump is rated at 2.4 Gallons Per Minute and 2400 PSI pressure rating.
The -211 can be coded as follows:
the first digit identifies the chemical injector used.
1 = 2.1 mm orifice
2 = 1.8 mm orifice
3 = 2.3 mm orifice
The second digit identifies with a number 1 that the pump has a thermal relief valve originally installed.
The third digit is the input drive shaft dimensions and drive type.
1 indicates a 3/4" gasoline engine drive shaft.
2 indicates a 7/8" electric motor drive shaft.
To properly identify which GIANT GX PUMP YOU SHOULD ORDER, TAKE A LOOK AT THIS NUMBER ON YOUR PUMP AND MAKE YOUR PURCHASE SELECTION USING THE LINK IN THE TABLE BELOW.
EXAMPLES OF ID NUMBERS YOU MAY FIND
GIANT PUMP GX2424
GIANT PUMP GXRH2424-211
GIANT PUMP GXRH2424-111
GIANT PUMP GXRH2424-311
GIANT PUMP GXH2424-111
GIANT PUMP GXH2424-211
GIANT PUMP GXH2424-311
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