Which UMAREX PAC Compressor Is Right for You?

UMAREX’s PAC range has quickly become one of the most talked-about compressor line-ups in PCP shooting, largely because they’ve sensibly designed different compressors for different users, rather than one machine does everything at a high price.

From super-portable battery units to workshop compressors and silent home-friendly options, there’s now something for nearly every shooter.

The trick is working out which one actually suits how you shoot.

At a Glance Comparison*

	PAC 400	PAC 900	PAC ECO Silent	PAC 1100	PAC 1400
Power Source	18V battery	230V mains	230V mains	230V mains + 12V vehicle	230V mains + dual 18V battery system
Portability	Very high (ultra portable)	Low (bench unit)	Low	Medium (vehicle capable)	Very high (field + mains + battery)
Weight (Approx)	6.1kg	6.6kg	6.3kg	10.2kg	9.3kg
Air Process Rate (FAD)	4 L/min	7 L/min	1 L/min	11 L/min	14 L/min
Max Pressure	300 bar	300 bar	300 bar	300 bar	300 bar
Typical Fill Capacity	Up to ~1L systems	Up to ~1L systems	Up to ~1L systems	Up to ~3L tanks	Up to ~3L tanks
Noise Profile	Standard	Standard	Very quiet operation focus	Standard	Standard
Cooling / System Type	Oil & water free	Oil & water free	Oil & water free	Oil & water free	Oil & water free
Filtration	Replaceable sponge filter	Replaceable filter sponge	Built-in water Trap	Replaceable filter sponge	Replaceable filter sponge
Display / Controls	Digital with auto shut-off	Digital with auto shut-off	Digital with auto shut-off	Digital with auto shut-off	Digital with auto shut-off
Intended Use Case	Field topping / mobile rifle use	Home workshop filling	Indoor / quiet home overnight filling	Mixed home + vehicle + larger systems	Full flexibility mobile + home + remote shooting
Price	£425	£370	£320	£585	£800

Key Takeaways (What the table actually tells you)

PAC 400

UMAREX PAC 400 - Super Portable Battery Operated PCP Air Compressor

£425.00

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This is your grab-and-go compressor. Designed purely for portability and rifle-level fills, not bottle ecosystems or heavy workshop use.

Good for:

• Field shooters

• Ratting / pest control

• Lightweight kit users

PAC 900

UMAREX PAC 900 - Workshop PCP Air Compressor

£370.00

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This is the baseline home compressor.

It does one job well:

• sit on a bench

• plug in

• fill rifles

No drama, no mobility, just consistent use at home.

PAC ECO Silent

UMAREX PAC Eco - Silent PCP Air Compressor

£320.00

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The only real “specialist” in the range.

Its entire identity is:

• reduced noise output

• home-friendly operation

• more comfortable indoor use

If you’re in shared spaces or just don’t want a compressor sounding like it’s auditioning for a construction site, this is the one.

PAC 1100

UMAREX PAC 1100 - Portable PCP Air Compressor

£585.00

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This is where things start getting properly flexible.

Key upgrades:

• 12V vehicle compatibility

• larger fill capability (up to ~3L systems)

This is the utility player of the range.

If you want one compressor that does:

• home

• car

• range trips

This is the logical step up from cheaper compressors on the market or freeing yourself from bottles.

PAC 1400

UMAREX PAC 1400 - Portable Battery Operated PCP Air Compressor

£800.00

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The “do almost everything anywhere” option.

Key points:

• Dual battery system + mains

• Full mobility focus

• Large system fill capability

• Highest independence of the range

This is the closest thing here to a true field/workshop hybrid compressor.

The Important Reality Check (Moisture & Drying)

Now the bit nobody likes hearing, but absolutely needs to be said.

Across the entire PAC range:

• There is no true dedicated drying medium system

• Filters and sponges are present, but they are basic particulate/moisture reduction only

That means:

Even though these compressors are very capable, you should still expect to potentially invest in:

• Inline moisture filters

• Desiccant drying systems

• External air drying solutions for bottles or high-use setups

Because in real terms:

The small built-in filters are not a substitute for proper air drying

They’ll help a little, but they are not designed to fully prevent moisture buildup in long-term PCP use.

Hill Dry-Pac Pro In-Line Moisture Trap for PCP Air Compressors

£120.00£98.00

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Bottom Line

The PAC range isn’t “one compressor in five shapes”.

It’s actually:

• PAC 400 → portability

• PAC 900 → home simplicity

• PAC ECO → quiet specialist

• PAC 1100 → hybrid workhorse

• PAC 1400 → full mobility flagship

Pick based on how and where you actually fill, not just pressure numbers.

Because on paper, they all compress air. In reality, they solve very different problems.

Shop PCP Air Compressors

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