The AirTAC Airtac GAR Air Regulators GAR30010ST is a genuine compressed-air pressure regulator. It sets and holds a steady downstream pressure across the 0.05 - 0.9 MPa range, with 3/8" ports and a built-in circular pressure gauge. It regulates pressure only — it does not filter the air or remove water.
The GAR30010ST is an air pressure regulator, not a filter. Its job is to take a higher, varying supply pressure and deliver a steady, lower downstream pressure that the operator sets once and trusts. Water and particles pass through untouched, so this unit should never be bought expecting it to clean the air. This version is the standard type: it regulates 0.05-0.9 MPa (7-130 psi), with a maximum working pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It fits 3/8" NPT piping, weighs 300 g, and works from -20 to 70 C. Because the thread is NPT, the fitted circular gauge reads psi/bar, which suits crews working in psi. A pressed-in self-locking knob holds the setpoint against vibration and accidental bumps, so the pressure you dial in stays where you left it.
| Model | Airtac GAR Air Regulators GAR30010ST |
|---|---|
| Series | GAR300 air regulator |
| Port size | 3/8" (NPT thread) |
| Regulation type | Standard |
| Pressure range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure gauge | Circular, psi / bar scale |
| Bracket | Included |
| Reflux valve | None |
| Fluid | Air |
|---|---|
| Max. pressure | 1.0 MPa (145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -20 to +70 °C |
| Adjustment | Self-locking press-in knob |
| Mounting | Panel + optional bracket |
| Weight | 300 g |
Specifications follow the official AirTAC GAR catalogue (pages 228-229). This is a regulator only — it sets and holds a downstream pressure but does not filter the air or separate water. To clean the air as well, use the matching GAFR300 filter-regulator or add a GAF filter upstream. Never run above the 1.5 MPa (215 psi) proof pressure.
| GAR300 | GA300 series air regulator — sets the port range and weight class. |
|---|---|
| 10 | Port size 3/8". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| S | Standard regulation: 0.05 - 0.9 MPa (7 - 130 psi). This body offers S (standard) or L (lower pressure). |
| (blank) | Mounting bracket included. |
| (blank) | Circular pressure gauge fitted. |
| T | NPT thread; gauge scale psi / bar. |
| (blank) | No reverse-flow (reflux) valve. |
A GAR regulates pressure but does not filter — there is no bowl, element or drain code. Need to clean the air too? The matching GAFR300-10 is the same regulator with a built-in filter.
All bodies share the same 0.05-0.9 MPa (S) regulated range, 1.0 MPa max and 1.5 MPa proof; the body number sets the port size and the flow the regulator can pass. Bigger ports feed higher air demand. The catalogue plots a flow curve at 0.7 MPa inlet but prints no numeric envelope, so size by port and weight and confirm the curve for a real duty point.
| This model | GAR300 · 3/8" · 300 g |
|---|---|
| One size down | GAR200 |
| One size up | GAR400 |
| Add filtration | GAFR300-10 (filter + regulator) |
A 3/8" NPT regulator is sized for the main air feed of a single machine tool or machining cell, holding a constant setpoint so spindle and actuator circuits see stable pressure all shift long.
Carton sealers and wrapping heads need repeatable pressure for consistent seals. The self-locking knob keeps the setting fixed even where vibration from the machine frame would slowly move a plain knob.
At a bench or drop feeding impact drivers, riveters and air chisels from 3/8" piping, the fitted psi/bar gauge lets operators check and adjust downstream pressure at a glance without leaving the station.
Start with size: the GAR300 body takes 1/4", 3/8" and 1/2" ports and weighs 300 g, so it sits between the light GAR200 (170 g) and the heavier GAR400 (570 g). For a 3/8" line with a mid-range air demand, this body is the natural fit. Next, the type letter: S regulates 0.05-0.9 MPa (7-130 psi), while L stops at 0.05-0.4 MPa (7-58 psi) and cannot reach a 0.5-0.6 MPa setpoint at all, so this standard type is the right pick for a normal machine supply. The gauge is fitted here; choose an N-code unit only if the panel already carries its own gauge. On threads, NPT reads psi/bar on the gauge, PT reads MPa/psi, and G reads bar/MPa, so match the units your crew uses. The mounting bracket is included with this SKU, and no reflux valve is attached. If the line also needs clean air, add a GAF filter upstream or step to the GAFR300-10, which is the same regulator with a built-in filter. The proof pressure of 1.5 MPa sits at a 1.5x margin over the 1.0 MPa maximum working pressure, a burst-test figure rather than permission to run above 1.0 MPa.
Quick checklist
This is a regulator only — it sets and holds pressure but does not filter or lubricate. Add a GAF filter, a GAL lubricator, or step up to the GAFR300-10 filter-regulator as your air-prep needs grow.
It is a standard-type AirTAC air pressure regulator regulating 0.05-0.9 MPa (7-130 psi). Maximum working pressure is 1.0 MPa (145 psi) and proof pressure is 1.5 MPa (215 psi). Operating temperature spans -20 to 70 C and the unit weighs 300 g. The port is 3/8" NPT, a circular gauge is fitted, and the mounting bracket is included.
The T stands for NPT thread, which sets both the connecting thread and the gauge scale. On this NPT model the circular gauge reads psi/bar. A PT-thread unit would read MPa/psi and a G-thread unit would read bar/MPa, so pick the letter that matches the units your team works in.
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Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.