MH Oxygen Regulators are constant-pressure regulators calibrated to deliver 15 -20 psig of dynamic pressure. Regulators are offered in CGA-540 (US standard) and DIN-477 (European standard). All MH regulators are designed and built by us at Mountain High allowing us to service and make any repairs the might be required.

XCR and XCP Single Outlet Regulators

The XCR and XCP series of regulators are single-outlet. These regulators feature the Push-to-Connect fitting system for 4 mm and 6 mm polyurethane tubing. The standard issue with our XCR and EDS single-unit system packages is the 00REG-1033-00 Regulator. The axial outlet versions are available in CGA-540 & DIN-477 with built-in cylinder pressure gauges. The XCR regulators connect directly to the refill/service-port of our oxygen cylinder with a CGA-540 valve. All single outlet regulators can be made into a 2-port regulator by adding a splitter.

Four-port XCP Regulators

For delivery to up to four passengers, this piston-type gauged oxygen regulator design is known for its ruggedness and flawless operation, even in an extreme environment. Calibrated operation is ensured in a wide range of inlet pressures, temperatures and shock-vibrations.
NOTE: We do not manufacture a 2-port regulator as we found the cost of manufacturing to be the same. This option also allow expansion at a later date without having to purchase a new regulator with additional ports.
All not used ports have a one way valve and are sealed when not in use.

In-line Reducing Regulator

The EDS-ILR oxygen stabilizing regulator allows you to operate EDS O2D1 or EDS -O2D2 units from an oxygen source with high service pressure, such as an aircraft with a built-in oxygen system. The EDS-ILR Regulator can be ordered with the most common OEM type connectors for direct ‘Plug-n-Fly’ with your aircraft type. (See below) Call for us for OEM options.

Pressure Regulators

ARGX2-0101-01SAE-4 Inlet, Pressure Regulator

Service regulator SAE-4.

00REG-1091-01SAE-4 Inlet, High-Pressure/High-Flow
Custom-built to your specifications.
00REG-1033-01XCR Axial Regulator (CGA 540)

XCR-1P axial regulator. Our biggest-selling regulator.

Reg 2G Axial CGA-540 x 6mm Tube (EOS) with Gauge Port

6mm Push-to Connect Outlet with Gauge Port
This is a build to order item.

00REG-1034-02XCR Regulator (DIN-477) (No Gauge)

XCR-DIN-1P axial  no-gauge (new Euro).

00REG-2110-Regulator, Assy.-2G, 2110 Series DIN-477-9 (Non-Gauged w/Port)

New, second-generation series (2G) DIN non-gauged regulator.
3,000 psi (207 bar) rated.

00REG-2111Regulator, Assy.-2G, 2111 Series DIN-477-9 Gauged

New, second-generation series (2G) DIN gauged regulator.

00REG-2100Regulator, Assy. 2G, 2100 Series CGA-540 (No Gauge w/Port)

Regulator, CGA-540 (2G),  single-stage with gauge port (no gauge).

00REG-2101Regulator, Assy. 2G, 2101 Series CGA-540 Gauged

Regulator, CGA-540 (2G), single-stage (gauged).

00REG-1096Regulator, Dual-Stage SAE-4M, 4mm or 6mm Tube, Axial

Regulator, dual-stage SAE-4M.

00REG-1052-01EOS-6 Axial Quick-Connect, No-Gauge Port

EOS-6 Axial 6mm quick-connect regulator.

00XCR-1044-00XCR-Y Split Kit

Split kit 4mm (Y). Allows (2) EDS units to be installed to one XCR-type regulator.
One-way check valves are incorporated into the (Y) fitting.

19600-0002-00Poly Tube, 4mm, Red, 95 Dur (Ft.)

4mm OD, red poly tubing as used in all O2D1 and O2D2 applications.

00REG-1048EDS In-Line Reducing Regulator (ILR)

EDS reducing regulator with your choice of Scott, 750, 566, or CPC connector.

00REG-1004-01XCP-1P Regulator

XCP-1P 1 place regulator, now smaller, lighter and more compact than ever!

00REG-1018-02XCP-4P Regulator CGA-540 (No Gauge)

FPR-REG-CGA540-no gauge.

00CPG-1010-00Gauge MH-300 Medium Pressure

MH-300 1.5″ gauge w/1/8″ NPT(M) fitting, 0-3000psi.

00CPG-0028-00Protective Boot for MH-300 Gauge

Protective gauge boot.

00REG-1090-03Regulator, High-Pressure/High-Flow CGA-540

High-pressure and high-flow oxygen regulator with CGA-540 connection.
This is a build-to-order item.

00CPG-1011-00MH-400 High Pressure Gauge

MH-400 1.25″ high-pressure cylinder gauge.

00REG-1092-0XRegulator CGA-540 2-Stage, Axial

CGA-504 2-stage axial regulator 4mm or 6mm.


00REG-1093-0XRegulator CGA-540 2-Stage, Axial-Gauged

CGA-504 2-stage axial regulator 4mm or 6mm. With gauge.


APCR2-0100-00PCR-2 CGA-540 Reg. Dual-Action Assy.

Pneumatically controlled regulator (PCR-2)
Our new simple-to-install and simple-to-operate PCR-2 oxygen regulator kit for built-in and portable applications. (Although these systems have been designed to meet and exceed FAA TSO and AIR specification, they are not meant for the certified market without an STC or 337.)

00REG-1095Regulator DIN 477-9 2-Stage Axial Gauge

DIN 477-9 (Euro) 2-stage gauge axial regulator 4mm or 6mm.


00REG-1089-01Regulator, High-Pressure/High-Flow DIN 477-9

High-pressure, high-flow, XCR-DIN-1P axial no-gauge (new Euro).

This is a build-to-order item.

00EDS-1077-00In-Line Reducing Regulator Replacement Supply Hose

EDS feed tube for ILR.

00EDS-1070-00XCP to EDS Supply Adapter

XCP to EDS feed tube for CPC-type connection.

00XCP-1030XCP Tubing Extension (Variable Lengths)

XCP extension available in 3-, 4-, 6-, & 20-ft. lengths.

00XCP-1048-00XCP-Y Split Kit

Split kit 6mm (Y) CPC-style connectors. Allows (2) EDS units to be installed to one XCP-type regulator.
Female connectors have a one-way check valve.
Tubing can be adjusted to length as needed.

00CPC-0016-00Fitting 1/8 NPT-M w/CV (plastic)

CPC 1/8″ NPT-male connector with check valve.

19056-0403-00Fitting, One-Touch 4mm x 1/8 BSPP, 180º, One-Touch

One-touch 4mm x 1/8″ BSPP 180º fitting.

19056-0603-006mm x 1/8 BSPP, 180º, One-Touch

One-touch 6mm x 1/8″ BSPP.

19056-0404-00Fitting, One-Touch 4mm x 1/8 BSPP, 90º, One-Touch

One-touch 4mm x 1/8″ BSPP 90º fitting.

19056-0604-00Fitting, 6mm x 1/8 BSPP 90º, One-Touch

Fitting, 6mm x 1/8 BSPP 90º, one-touch.

19051-0604-00Fitting 1/8 BSPP(M) to 6mm Poly Tube

Fitting  1/8″ BSPP(M)-6mm poly tube.

09001-0011-90O-Ring 2-011 V90

Replacement O-ring for all CGA-540 regulator & trans-fill.
Fits CGA-540 nipple.

09001-3113-70O-Ring 2-113 E70 (DIN)

Replacement O-ring for all DIN-477#9 regulators & transfill.
Fits DIN 477-9 nipple.

00NTG-1012-00NTG Copilot Regulator w/Gauge

Copilot replacement regulator with gauge.