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AirTAC G Series · Air Pressure Regulator
AirTAC GR300-08 Air Pressure Regulator, 1/4" Port
Every stocked AirTAC GR300-08 configuration on one page: 117 order codes with 1/4" ports, from $28.65. Pick the type, pressure gauge and configuration to see the exact order code and price.
This combination is not a stock order code. Request a quote and we will confirm availability and price.
$35.47
$40.03Save 11%
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- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the AirTAC GR300-08
The AirTAC GR300-08 is a G-series air pressure regulator. It has 1/4" ports (PT thread as standard, G and NPT also stocked). It regulates from 0.05 to 0.9 MPa (7-130 psi). The low-pressure (L) version regulates up to 0.4 MPa (58 psi).
The pressure gauge is a built-in square type (a round external gauge can be chosen), the knob locks by pressing it in, and a balanced valve keeps the set pressure stable. A bracket or panel mounting is available. Maximum operating pressure is 1.0 MPa (145 psi), proof pressure 1.5 MPa (215 psi), operating temperature -20 to +70 °C.
GR300-08 Technical Specifications
| Model | GR300-08 |
|---|---|
| Port | 1/4" (08) |
| Thread | PT (standard), G, NPT (T) |
| Weight | 350 g |
| Fluid | Compressed air |
|---|---|
| Regulating range | 0.05 – 0.9 MPa (7 – 130 psi) |
| Low-pressure (L) version | Up to 0.4 MPa (58 psi) |
| Maximum pressure | 1.0 MPa (145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to +70 °C |
Source: AirTAC Products Catalog 2026A (PDF01-P0213), GR series specifications and ordering code.
How the GR300-08 Order Code Is Built
| GR300 | Series and body size |
|---|---|
| 08 | Port 1/4" |
| L | Low-pressure type, up to 0.4 MPa (blank = standard) |
| J | Without bracket (blank = bracket included) |
| N | No gauge (blank = gauge fitted, then style and scale) |
| F / C | Square / round gauge |
| 1 / 2 / 3 | Gauge scale MPa / psi / bar |
| G / T | Thread: G = G, T = NPT, blank = PT |
| K | With check valve (blank = without) |
All AirTAC GR300-08 Order Codes (117)
Each order code links to its own datasheet page. Use Select to load it into the configurator above.
| Order code | Type | Pressure gauge | Configuration | Price | Select |
|---|---|---|---|---|---|
| GR30008F1 | Standard | Square gauge, MPa (F1) | With bracket · PT thread | $35.47 | |
| GR30008F1K | Standard | Square gauge, MPa (F1) | With bracket · PT thread · Check valve (K) | $46.81 | |
| GR30008F1T | Standard | Square gauge, MPa (F1) | With bracket · NPT thread | $35.63 | |
| GR30008F1TK | Standard | Square gauge, MPa (F1) | With bracket · NPT thread · Check valve (K) | $46.96 | |
| GR30008JF1 | Standard | Square gauge, MPa (F1) | No bracket (J) · PT thread | $34.56 | |
| GR30008JF1K | Standard | Square gauge, MPa (F1) | No bracket (J) · PT thread · Check valve (K) | $45.91 | |
| GR30008JF1T | Standard | Square gauge, MPa (F1) | No bracket (J) · NPT thread | $34.31 | |
| GR30008JF1TK | Standard | Square gauge, MPa (F1) | No bracket (J) · NPT thread · Check valve (K) | $45.64 | |
| GR30008F2 | Standard | Square gauge, psi (F2) | With bracket · PT thread | $35.47 | |
| GR30008F2K | Standard | Square gauge, psi (F2) | With bracket · PT thread · Check valve (K) | $46.90 | |
| GR30008F2G | Standard | Square gauge, psi (F2) | With bracket · G thread | $35.65 | |
| GR30008F2GK | Standard | Square gauge, psi (F2) | With bracket · G thread · Check valve (K) | $46.98 | |
| GR30008F2T | Standard | Square gauge, psi (F2) | With bracket · NPT thread | $35.60 | |
| GR30008F2TK | Standard | Square gauge, psi (F2) | With bracket · NPT thread · Check valve (K) | $46.93 | |
| GR30008JF2 | Standard | Square gauge, psi (F2) | No bracket (J) · PT thread | $34.26 | |
| GR30008JF2K | Standard | Square gauge, psi (F2) | No bracket (J) · PT thread · Check valve (K) | $45.59 | |
| GR30008JF2G | Standard | Square gauge, psi (F2) | No bracket (J) · G thread | $34.35 | |
| GR30008JF2GK | Standard | Square gauge, psi (F2) | No bracket (J) · G thread · Check valve (K) | $45.68 | |
| GR30008JF2T | Standard | Square gauge, psi (F2) | No bracket (J) · NPT thread | $34.28 | |
| GR30008JF2TK | Standard | Square gauge, psi (F2) | No bracket (J) · NPT thread · Check valve (K) | $45.61 | |
| GR30008F3 | Standard | Square gauge, bar (F3) | With bracket · PT thread | $35.47 | |
| GR30008F3K | Standard | Square gauge, bar (F3) | With bracket · PT thread · Check valve (K) | $46.81 | |
| GR30008F3G | Standard | Square gauge, bar (F3) | With bracket · G thread | $35.47 | |
| GR30008F3T | Standard | Square gauge, bar (F3) | With bracket · NPT thread | $35.63 | |
| GR30008F3TK | Standard | Square gauge, bar (F3) | With bracket · NPT thread · Check valve (K) | $46.96 | |
| GR30008JF3 | Standard | Square gauge, bar (F3) | No bracket (J) · PT thread | $34.56 | |
| GR30008JF3T | Standard | Square gauge, bar (F3) | No bracket (J) · NPT thread | $34.32 | |
| GR30008JF3TK | Standard | Square gauge, bar (F3) | No bracket (J) · NPT thread · Check valve (K) | $45.65 | |
| GR30008C1 | Standard | Round gauge, MPa (C1) | With bracket · PT thread | $35.47 | |
| GR30008C1K | Standard | Round gauge, MPa (C1) | With bracket · PT thread · Check valve (K) | $46.81 | |
| GR30008C1T | Standard | Round gauge, MPa (C1) | With bracket · NPT thread | $35.61 | |
| GR30008C1TK | Standard | Round gauge, MPa (C1) | With bracket · NPT thread · Check valve (K) | $46.94 | |
| GR30008JC1 | Standard | Round gauge, MPa (C1) | No bracket (J) · PT thread | $34.56 | |
| GR30008JC1K | Standard | Round gauge, MPa (C1) | No bracket (J) · PT thread · Check valve (K) | $45.91 | |
| GR30008JC1T | Standard | Round gauge, MPa (C1) | No bracket (J) · NPT thread | $34.30 | |
| GR30008JC1TK | Standard | Round gauge, MPa (C1) | No bracket (J) · NPT thread · Check valve (K) | $45.63 | |
| GR30008C2 | Standard | Round gauge, psi (C2) | With bracket · PT thread | $35.56 | |
| GR30008C2K | Standard | Round gauge, psi (C2) | With bracket · PT thread · Check valve (K) | $46.89 | |
| GR30008C2G | Standard | Round gauge, psi (C2) | With bracket · G thread | $35.64 | |
| GR30008C2GK | Standard | Round gauge, psi (C2) | With bracket · G thread · Check valve (K) | $46.97 | |
| GR30008C2T | Standard | Round gauge, psi (C2) | With bracket · NPT thread | $35.57 | |
| GR30008C2TK | Standard | Round gauge, psi (C2) | With bracket · NPT thread · Check valve (K) | $46.90 | |
| GR30008JC2 | Standard | Round gauge, psi (C2) | No bracket (J) · PT thread | $34.24 | |
| GR30008JC2K | Standard | Round gauge, psi (C2) | No bracket (J) · PT thread · Check valve (K) | $45.57 | |
| GR30008JC2G | Standard | Round gauge, psi (C2) | No bracket (J) · G thread | $34.33 | |
| GR30008JC2GK | Standard | Round gauge, psi (C2) | No bracket (J) · G thread · Check valve (K) | $45.66 | |
| GR30008JC2T | Standard | Round gauge, psi (C2) | No bracket (J) · NPT thread | $34.27 | |
| GR30008JC2TK | Standard | Round gauge, psi (C2) | No bracket (J) · NPT thread · Check valve (K) | $45.60 | |
| GR30008C3 | Standard | Round gauge, bar (C3) | With bracket · PT thread | $35.47 | |
| GR30008C3K | Standard | Round gauge, bar (C3) | With bracket · PT thread · Check valve (K) | $46.81 | |
| GR30008C3T | Standard | Round gauge, bar (C3) | With bracket · NPT thread | $35.61 | |
| GR30008C3TK | Standard | Round gauge, bar (C3) | With bracket · NPT thread · Check valve (K) | $46.94 | |
| GR30008JC3 | Standard | Round gauge, bar (C3) | No bracket (J) · PT thread | $34.56 | |
| GR30008JC3T | Standard | Round gauge, bar (C3) | No bracket (J) · NPT thread | $34.31 | |
| GR30008JC3TK | Standard | Round gauge, bar (C3) | No bracket (J) · NPT thread · Check valve (K) | $45.64 | |
| GR30008N | Standard | No gauge (N) | With bracket · PT thread | $29.81 | |
| GR30008NK | Standard | No gauge (N) | With bracket · PT thread · Check valve (K) | $41.16 | |
| GR30008NT | Standard | No gauge (N) | With bracket · NPT thread | $30.01 | |
| GR30008NTK | Standard | No gauge (N) | With bracket · NPT thread · Check valve (K) | $41.34 | |
| GR30008JN | Standard | No gauge (N) | No bracket (J) · PT thread | $28.65 | |
| GR30008JNK | Standard | No gauge (N) | No bracket (J) · PT thread · Check valve (K) | $40.01 | |
| GR30008JNT | Standard | No gauge (N) | No bracket (J) · NPT thread | $28.70 | |
| GR30008JNTK | Standard | No gauge (N) | No bracket (J) · NPT thread · Check valve (K) | $40.03 | |
| GR30008LF1 | Low-pressure (L) | Square gauge, MPa (F1) | With bracket · PT thread | $35.47 | |
| GR30008LF1K | Low-pressure (L) | Square gauge, MPa (F1) | With bracket · PT thread · Check valve (K) | $46.81 | |
| GR30008LF1T | Low-pressure (L) | Square gauge, MPa (F1) | With bracket · NPT thread | $35.60 | |
| GR30008LF1TK | Low-pressure (L) | Square gauge, MPa (F1) | With bracket · NPT thread · Check valve (K) | $46.93 | |
| GR30008LJF1 | Low-pressure (L) | Square gauge, MPa (F1) | No bracket (J) · PT thread | $34.56 | |
| GR30008LJF1T | Low-pressure (L) | Square gauge, MPa (F1) | No bracket (J) · NPT thread | $34.29 | |
| GR30008LJF1TK | Low-pressure (L) | Square gauge, MPa (F1) | No bracket (J) · NPT thread · Check valve (K) | $45.62 | |
| GR30008LF2 | Low-pressure (L) | Square gauge, psi (F2) | With bracket · PT thread | $35.55 | |
| GR30008LF2K | Low-pressure (L) | Square gauge, psi (F2) | With bracket · PT thread · Check valve (K) | $46.88 | |
| GR30008LF2G | Low-pressure (L) | Square gauge, psi (F2) | With bracket · G thread | $35.63 | |
| GR30008LF2GK | Low-pressure (L) | Square gauge, psi (F2) | With bracket · G thread · Check valve (K) | $46.96 | |
| GR30008LF2T | Low-pressure (L) | Square gauge, psi (F2) | With bracket · NPT thread | $35.56 | |
| GR30008LF2TK | Low-pressure (L) | Square gauge, psi (F2) | With bracket · NPT thread · Check valve (K) | $46.89 | |
| GR30008LJF2 | Low-pressure (L) | Square gauge, psi (F2) | No bracket (J) · PT thread | $34.23 | |
| GR30008LJF2K | Low-pressure (L) | Square gauge, psi (F2) | No bracket (J) · PT thread · Check valve (K) | $45.56 | |
| GR30008LJF2G | Low-pressure (L) | Square gauge, psi (F2) | No bracket (J) · G thread | $34.32 | |
| GR30008LJF2GK | Low-pressure (L) | Square gauge, psi (F2) | No bracket (J) · G thread · Check valve (K) | $45.65 | |
| GR30008LJF2T | Low-pressure (L) | Square gauge, psi (F2) | No bracket (J) · NPT thread | $34.26 | |
| GR30008LJF2TK | Low-pressure (L) | Square gauge, psi (F2) | No bracket (J) · NPT thread · Check valve (K) | $45.59 | |
| GR30008LF3T | Low-pressure (L) | Square gauge, bar (F3) | With bracket · NPT thread | $35.60 | |
| GR30008LF3TK | Low-pressure (L) | Square gauge, bar (F3) | With bracket · NPT thread · Check valve (K) | $46.93 | |
| GR30008LJF3T | Low-pressure (L) | Square gauge, bar (F3) | No bracket (J) · NPT thread | $34.29 | |
| GR30008LJF3TK | Low-pressure (L) | Square gauge, bar (F3) | No bracket (J) · NPT thread · Check valve (K) | $45.62 | |
| GR30008LC1 | Low-pressure (L) | Round gauge, MPa (C1) | With bracket · PT thread | $35.47 | |
| GR30008LC1K | Low-pressure (L) | Round gauge, MPa (C1) | With bracket · PT thread · Check valve (K) | $46.81 | |
| GR30008LC1T | Low-pressure (L) | Round gauge, MPa (C1) | With bracket · NPT thread | $35.59 | |
| GR30008LC1TK | Low-pressure (L) | Round gauge, MPa (C1) | With bracket · NPT thread · Check valve (K) | $46.92 | |
| GR30008LJC1 | Low-pressure (L) | Round gauge, MPa (C1) | No bracket (J) · PT thread | $34.56 | |
| GR30008LJC1T | Low-pressure (L) | Round gauge, MPa (C1) | No bracket (J) · NPT thread | $34.27 | |
| GR30008LJC1TK | Low-pressure (L) | Round gauge, MPa (C1) | No bracket (J) · NPT thread · Check valve (K) | $45.60 | |
| GR30008LC2 | Low-pressure (L) | Round gauge, psi (C2) | With bracket · PT thread | $35.52 | |
| GR30008LC2K | Low-pressure (L) | Round gauge, psi (C2) | With bracket · PT thread · Check valve (K) | $46.85 | |
| GR30008LC2G | Low-pressure (L) | Round gauge, psi (C2) | With bracket · G thread | $35.61 | |
| GR30008LC2GK | Low-pressure (L) | Round gauge, psi (C2) | With bracket · G thread · Check valve (K) | $46.94 | |
| GR30008LC2T | Low-pressure (L) | Round gauge, psi (C2) | With bracket · NPT thread | $35.55 | |
| GR30008LC2TK | Low-pressure (L) | Round gauge, psi (C2) | With bracket · NPT thread · Check valve (K) | $46.88 | |
| GR30008LJC2 | Low-pressure (L) | Round gauge, psi (C2) | No bracket (J) · PT thread | $34.22 | |
| GR30008LJC2K | Low-pressure (L) | Round gauge, psi (C2) | No bracket (J) · PT thread · Check valve (K) | $45.55 | |
| GR30008LJC2G | Low-pressure (L) | Round gauge, psi (C2) | No bracket (J) · G thread | $34.31 | |
| GR30008LJC2GK | Low-pressure (L) | Round gauge, psi (C2) | No bracket (J) · G thread · Check valve (K) | $45.64 | |
| GR30008LJC2T | Low-pressure (L) | Round gauge, psi (C2) | No bracket (J) · NPT thread | $34.24 | |
| GR30008LJC2TK | Low-pressure (L) | Round gauge, psi (C2) | No bracket (J) · NPT thread · Check valve (K) | $45.57 | |
| GR30008LC3 | Low-pressure (L) | Round gauge, bar (C3) | With bracket · PT thread | $35.47 | |
| GR30008LC3T | Low-pressure (L) | Round gauge, bar (C3) | With bracket · NPT thread | $35.59 | |
| GR30008LC3TK | Low-pressure (L) | Round gauge, bar (C3) | With bracket · NPT thread · Check valve (K) | $46.92 | |
| GR30008LJC3T | Low-pressure (L) | Round gauge, bar (C3) | No bracket (J) · NPT thread | $34.27 | |
| GR30008LJC3TK | Low-pressure (L) | Round gauge, bar (C3) | No bracket (J) · NPT thread · Check valve (K) | $45.60 | |
| GR30008LN | Low-pressure (L) | No gauge (N) | With bracket · PT thread | $29.81 | |
| GR30008LNT | Low-pressure (L) | No gauge (N) | With bracket · NPT thread | $29.98 | |
| GR30008LNTK | Low-pressure (L) | No gauge (N) | With bracket · NPT thread · Check valve (K) | $41.31 | |
| GR30008LJN | Low-pressure (L) | No gauge (N) | No bracket (J) · PT thread | $28.65 | |
| GR30008LJNK | Low-pressure (L) | No gauge (N) | No bracket (J) · PT thread · Check valve (K) | $40.01 | |
| GR30008LJNT | Low-pressure (L) | No gauge (N) | No bracket (J) · NPT thread | $28.68 | |
| GR30008LJNTK | Low-pressure (L) | No gauge (N) | No bracket (J) · NPT thread · Check valve (K) | $40.01 |
Need a combination that is not listed? Request a quote.
Where the GR300-08 Is Used
Machine air inlet
Fit the GR300-08 where compressed air enters a machine.
Stable working pressure
Set and hold the pressure your valves and cylinders need.
Pneumatic stations
Feeds cylinders, valves and tools on one air line.
Choosing the Right GR300-08 Configuration
Start with the type: standard, or low-pressure (L) when the set pressure must stay at or below 0.4 MPa (58 psi).
Then the pressure gauge: square (F) or round (C), reading in MPa (1), psi (2) or bar (3), or no gauge (N) if you read pressure elsewhere.
Finally the configuration. A mounting bracket is included unless the code carries J. Thread is PT unless the code ends in G (G thread) or T (NPT), before any K. K adds a check valve.
AirTAC GR300-08 FAQ
It regulates from 0.05 to 0.9 MPa (7-130 psi). Low-pressure (L) versions go up to 0.4 MPa (58 psi).
1/4" (08), PT thread as standard; G = G, T = NPT at the end of the code.
F = square gauge, C = round gauge, followed by the scale: 1 = MPa, 2 = psi, 3 = bar. N means no gauge.
No. You can order a single GR300-08. Orders are processed and handed to the carrier within 3-5 business days.
Buying the GR300-08 from AirtacDistr
Genuine AirTAC parts
Every order code on this page is the AirTAC factory part number. Specifications follow the AirTAC Products Catalog 2026A. About us
Ready in 3-5 business days
That is our time to process the order and hand it to the carrier. No minimum order: a single piece can be ordered.
14-day returns, 1-year warranty
Return within 14 days of delivery; the buyer pays return shipping. The warranty covers defects not caused by misuse. Return policy
Engineering help
Send your application details and we will confirm the right order code, usually within 7-8 hours. Ask us
Page data checked against the live catalog on 2026-10-30.
Request a Quote for the GR300-08
Send the order code, quantity and destination. We confirm price, stock and lead time, usually within 7-8 hours.
Thank you. We received your request for GR30008F1 and will confirm price, stock and lead time — usually within 7-8 hours.