React Health Luna G3 Integrated Heated Tubing (LG3HT), coiled, with power cable and plug

Luna G3 heated tubing cuffs and gray power connector, close-up

Luna G3 heated tubing connected to the back of a Luna G3 BPAP 25A, with the power plug in its socket

Luna G3 Integrated Heated CPAP Tubing (LG3HT)

Q: Will it fit my machine?

Yes, if your machine is a Luna G3 Auto CPAP (LG3600) or a Luna G3 25A BPAP (LG3700) — and React Health also lists it for the Luna G3 CPAP (LG3500), the Luna G3 BPAP 30VT and the G3 X APAP. The model name is printed on the machine. It is not for other brands’ machines, and the older Luna II takes a different heated tube. If you’re not sure, call us and we’ll check it with you.

Q: How often should I replace it?

React Health’s manual rates it for 6 months from first use, with the daily cleaning it describes. Replace it sooner if you see a hole, a kink, a cut or exposed wire — a damaged heated tube gets replaced, never repaired.

US$25.00

In stock

Call (786) 755-8063

Genuine React Health heated tube for the Luna G3 series (item LG3HT)
Keeps humidified air warm to cut rainout in the hose
Fits the Luna G3 Auto CPAP (LG3600) and Luna G3 25A BPAP (LG3700)
6 ft, 19 mm — heat level set from your machine’s menu
Authorized React Health dealer — ships from Doral, FL

Genuine React Health heated tube for the Luna G3 series (item LG3HT)
Keeps humidified air warm to cut rainout in the hose
Fits the Luna G3 Auto CPAP (LG3600) and Luna G3 25A BPAP (LG3700)
6 ft, 19 mm — heat level set from your machine’s menu
Authorized React Health dealer — ships from Doral, FL

Genuine OEM partFree shipping on orders $99+Ships from Miami, FLExpert help · (786) 755-8063

Secure checkout · financing available

VISAAMEXDISC●VERaffirm

Brand: React Health
SKU: LG3HT
Category: Tubing & Connectors

AUTHORIZED REACT HEALTH DEALER · HEATED TUBING · ITEM LG3HT · FOR LUNA G3

The Luna G3 Heated Tubing — warm air all the way to your mask, and far less water in the hose

The heated upgrade for the Luna G3 Auto CPAP and the Luna G3 25A BPAP. A heating wire runs the length of the tube and keeps the humidified air warm on its way to your mask, so the moisture from your humidifier doesn’t turn back into water inside the hose overnight — what CPAP users call rainout.

Genuine React Health · item LG3HT (model LH1) · 6 ft · 19 mm · free U.S. shipping over $99.

Why heated tubing

Less water in the hose

Rainout is the water that condenses inside a cool tube and ends up gurgling toward your face. React Health designed this tube to reduce or eliminate it: the heating wire keeps the air warm along all 6 feet, so the moisture stays in the air instead of collecting as droplets.

You set it from the Luna

Plug it in and the tube icon on the main screen turns into a number, and a Heated Tubing setting appears in the menu. Turn the knob to choose the level: Off, Auto or 1–5 on the Luna G3 Auto CPAP, Off or 1–5 on the Luna G3 25A BPAP.

Powered by the machine

The air end fits the machine’s standard 22 mm outlet, and a separate power plug goes into the heated-tubing port on the back. The Luna powers it (24 V, 18 W) — no extra power supply, no wall outlet.

⚠ Check this before you order

This tube is made for one family of machines.

Luna G3this tubeAuto CPAP LG3600 · 25A BPAP LG3700

Other machinesa different tubeolder Luna II · other brands

This is not a universal heated hose. React Health says to connect it only to its own machines, and it is made for the Luna G3 series: the Luna G3 Auto CPAP (LG3600) and the Luna G3 25A BPAP (LG3700) we sell, plus the Luna G3 CPAP (LG3500), the Luna G3 BPAP 30VT and the G3 X APAP, which React Health also lists for it. For the older Luna II, React Health lists a different heated tube. Look at the model name printed on your machine, and if you’re not sure, call us before you order.

One difference between the two machines we sell: the Auto heat level exists only on the Luna G3 Auto CPAP. On the Luna G3 25A BPAP you choose Off or a level from 1 to 5.

Who notices the difference most

If either of these sounds like your nights, this is the part.

Water in the hosegurgling or spittingthat’s rainout — this is what it’s for

A cool bedroomA/C on all nightcold air around the hose means condensation sooner

Cool rooms make rainout worse: the colder the air around the hose, the sooner the humidified air inside it reaches its dew point. If you sleep with the air conditioning on — which in Florida is most of the year — this is the usual fix. It’s built for cool rooms, not hot ones: read the two room limits just below.

Use it safely — straight from the manual

A heated tube is an electrical part carrying warm air to your face. These are React Health’s rules for it.

Never cover the tube — no blankets, sheets, or fabric or plastic tube covers, and keep it away from an electric blanket. Covering it can overheat the air.
Room above 86 °F (30 °C)? Turn the tube’s heat off by unplugging its power connector.
Room humidity above 80%? Don’t use the heated tube.
Always with the humidifier — on the Luna G3 it’s built in — and only with air flowing.
Adults only, one patient.
Check it before each use for holes, kinks, cuts or exposed wire. If it’s damaged, replace it — don’t repair it.
Connect and disconnect it by the cuff, never by pulling the hose.
Don’t leave spare hose piled up at the head of the bed.

Details

What’s included

Luna G3 Integrated Heated Tubing (item LG3HT, model LH1) — 6 ft heated hose with its power connector

The tube on its own. Heated tubing is sold separately from our Luna G3 machines, and the machine, the humidifier chamber and the mask are not included here. Replacing your mask too? From the same brand, see the React Health Numa full face mask.

Authorized React Health dealer — genuine part

American Oxygen is an authorized React Health dealer. This is the genuine React Health heated tube for the Luna G3, not a compatible copy. On a heated tube that matters: the Luna only shows its Heated Tubing setting once the tube is connected, and React Health says to use this tube with React Health machines only.

Cleaning and replacement

Clean it every day, by hand, with the tube unplugged. The power connector must never get wet. No dishwasher. Let it air-dry completely, and never reconnect it to the machine while it’s still damp. For the washing solution and rinse steps, follow React Health’s user manual for the tube.

Replace it every 6 months from first use, per the manufacturer’s manual — sooner if you find any damage.

Full specifications

Type	Heated CPAP / BiPAP tubing
Brand	React Health (authorized dealer)
Item / model	LG3HT · model LH1
Fits (machines we sell)	Luna G3 Auto CPAP (LG3600) · Luna G3 25A BPAP (LG3700)
Also listed by React Health for	Luna G3 CPAP (LG3500) · Luna G3 BPAP 30VT · G3 X APAP
Not for	Other brands’ machines (per React Health) · the older Luna II — React Health lists a different heated tube for it
Length	6 ft (1.83 m)
Inner diameter	19 mm
Connects to the machine	Standard 22 mm air outlet + a separate power plug in the heated-tubing port on the back
Power	24 V DC, 18 W — supplied by the machine
Heat settings	Luna G3 Auto CPAP: Off · Auto · 1–5 Luna G3 25A BPAP: Off · 1–5
Air temperature from the tube	Under 105.8 °F (41 °C), with the room at 41–86 °F (5–30 °C)
Works with	The humidifier (built into the Luna G3) — required
Latex	Not made with natural rubber latex
Service life	6 months from first use (manufacturer)
For	Adults · single patient
GTIN	06948538362549

In short: The Luna G3 Integrated Heated Tubing (React Health item LG3HT, model LH1) is a 6 ft (1.83 m), 19 mm heated hose for the Luna G3 series that reduces rainout — condensation inside the hose. The air end fits the machine’s standard 22 mm outlet; a separate power plug goes into the heated-tubing port on the back, and the machine powers it (24 V, 18 W). You set it from the machine’s menu: Off, Auto or 1–5 on the Luna G3 Auto CPAP (LG3600), Off or 1–5 on the Luna G3 25A BPAP (LG3700). It is used with the humidifier, for adults only, and React Health rates it for 6 months from first use. Latex-free. American Oxygen is an authorized React Health dealer and ships it from Doral, FL.

Frequently asked questions

Will it fit my machine?

Yes, if your machine is a Luna G3 Auto CPAP (LG3600) or a Luna G3 25A BPAP (LG3700) — and React Health also lists it for the Luna G3 CPAP (LG3500), the Luna G3 BPAP 30VT and the G3 X APAP. The model name is printed on the machine. It is not for other brands’ machines, and the older Luna II takes a different heated tube. If you’re not sure, call us and we’ll check it with you.

How do I connect it and turn the heat on?

Connect the air end to the machine’s 22 mm air outlet, then plug the separate power connector into the heated-tubing port on the back. Once it’s connected, the tube icon on the main screen shows a number and a Heated Tubing setting appears in the menu — choose the level with the knob. When you connect or disconnect it, hold it by the cuff, not the hose.

Do I still need the humidifier?

Yes. The heated tube keeps the air warm on its way to you, but the moisture comes from the humidifier — and React Health says to always use the tube with it. On the Luna G3 the humidifier is built in, so there’s nothing extra to buy.

I still see water in the hose. What else can I check?

First, the screen: if you see the tube icon instead of a number, the power connector isn’t fully connected, and if the setting is Off, the tube isn’t heating. Then, where the machine sits: React Health says to keep it lower than your head, so any condensation drains back into the humidifier chamber instead of toward your mask. If it keeps happening, call us and we’ll go through it with you.

How often should I replace it?

React Health’s manual rates it for 6 months from first use, with the daily cleaning it describes. Replace it sooner if you see a hole, a kink, a cut or exposed wire — a damaged heated tube gets replaced, never repaired.

How do I clean it?

Every day, by hand, with the tube unplugged from the machine. Never let the power connector get wet, and don’t put the tube in a dishwasher. Let it air-dry completely and don’t reconnect it until it’s fully dry. For the washing solution and rinse steps, follow React Health’s user manual for the tube.

Not sure which Luna you have? Ask us.

Tell us the model name printed on your machine and we’ll confirm this is the right tube — it takes one phone call and saves you a return. We ship from Doral, FL, and help in English and Spanish.

Call (786) 755-8063