Clicky

Best Portable Air Conditioner Drain Hose Size (Explained!)

With so many universal drain hoses on the market, it’s easy to assume you can grab any drain hose and fix it onto your portable AC. Well, that shouldn’t be the case, as you must first know your portable air conditioner drain hose size to get a fitting replacement.

Standard portable air conditioner drain hoses are 4-7 ft. long and have a 10-20 mm internal diameter and a 23-30 mm external diameter. But just to be sure about the diameter, check the AC’s outlet measurements from the manual or ask the manufacturer.

As you’ll note, some portable AC brands have different sizing for their drain hoses than others, and often, their drain hoses cannot be interchanged. But again, we have the standard or universal drain hoses designed to be compatible with most portable AC units as long as they match their measurements.

This guide will help you understand what drain hose size to use, depending on your portable AC brand and type. But first, let’s discuss why the correct drain hose size matters for your portable AC.

portable air conditioner drain hose size

In a hurry? See below the various drain hose sizes for different portable air conditioners:

Portable Air Conditioner Drain Hose Size Summary

Portable AC Drain Hose TypeLengthInner diameterOuter diameter
1Standard Portable AC Drain Hose4-7 ft.10-20 mm23-30 mm
2LG Portable AC Drain Hose5.2 ft.10 mm23 mm
3Toshiba Portable AC Drain Hose4-7 ft.19 mm23-30 mm
4Midea Portable AC Drain HoseUp to 6 ft10-20 mm23-30 mm
5Hisense Portable AC Drain Hose4-7 ft.10-20 mm23-30 mm
6Insignia Portable AC Drain Hose4-7 ft.12 mm or more23-30 mm
7Delonghi Portable AC Drain Hose6.5 ft.10 mm23-30 mm
8GE Portable AC Drain Hose4-7 ft.10-20 mm23-30 mm
9Haier Portable AC Drain Hose4.9 ft.17.79mm24.47 mm
10Danby Portable AC Drain Hose5 ft.10-20mm23-30 mm
11Arctic King Portable AC Drain Hose4-7 ft.10mm14mm

Does the Correct Drain Hose Size Matter for Your Portable AC?

Length-wise, it doesn’t matter a lot if you go for a 4ft. or 7 ft. or something in-between, and that’s why we have the range. You only need your drain hose long enough to exude the condensed water out of the tank.

But again, it shouldn’t be too short (not shorter than 3 ft.) as that might lead to the backflow of the condensed water. Meanwhile, the drain hose shouldn’t be too long (over 7 ft.) unless it’s wider than the standard to avoid taking too long to drain out the condensed water.

Diameter-wise, you need a drain hose that fits into your air conditioner’s outlet, and that’s why you should check this measurement from your AC manual or the manufacturer’s website. If the two don’t match, then there’s the chance that the condensed water may leak out and create a moist environment, which could incite mold growth.

Remember, condensation occurs naturally inside your AC’s water tank and must be exuded naturally. That’s why you must replace the drain hose when it starts leaking or won’t hold anymore.

What Size Hose Do I Need for A Portable Air Conditioner?

Here’s what to know about the various portable AC drain hose sizes:

1. Standard Drain Hose for Portable AC

Standard drain hoses usually vary in size, but most are 4-7 ft. long, while their internal and external diameters are 10-20 mm and 23-30 mm, respectively. These hoses usually are plastic and stretchable, which makes them easy to fit on most portable AC outlets.

2. LG Portable Air Conditioner Drain Hose Size

LG portable air conditioner drain hoses mostly come with a length of 5.2 ft. Their inner diameter is often 0.9 inches (or 23mm), while their outer diameter is 23-30mm.

We, however, have some wider drain hoses with a diameter of up to 5 inches or slightly wider. For that reason, it’s worth confirming the drain hose size, especially the diameter, before getting a drain hose replacement for your LG AC.

plastic drain hose pipe for air conditioner

3. Toshiba Portable Air Conditioner Drain Hose Size

Toshiba portable air conditioners mostly fit standard drain hoses. For that reason, you can go for a drain hose that’s 4-7 ft. long. The internal diameter, however, is ¾ inches (19 mm), while the external diameter is 23-30 mm.

4. Midea Portable Air Conditioner Drain Hose Size

You will likely find a Midea portable AC drain hose with a length of up to 6ft and an inner and external diameter of 10-20 mm and 23-30 mm, respectively.

5. Hisense Portable Air Conditioner Drain Hose Size

Hisense portable air conditioners also fit standard drain hoses. So, expect their drain hoses to be about 4-7 ft. long and their inner and outer diameter to average 10-20 mm and 23-30 mm, respectively.

6. Insignia Portable Air Conditioner Drain Hose Size

Insignia portable air conditioner drain hoses are the same sizes as standard portable AC drain hoses. Their length is 4-7 ft., while their inner and outer diameters are 10-20 mm and 23-30 mm, respectively.

7. Delonghi Portable Air Conditioner Drain Hose Size

The Delonghi portable air conditioner drain hose is about 2m (or 6.5 ft.) long. Its inner diameter is 10 mm, while its outer diameter is 23-30 mm.

8. GE Portable Air Conditioner Drain Hose Size

GE portable air conditioners mostly have a 4-7 ft. long drain hose with an inner and outer diameter of 10-20 mm and 23-30 mm, respectively.

9. Haier Portable Air Conditioner Drain Hose Size

Expect a single-drain Haier portable air conditioner to feature a drain hose with these measurements:

  • Length – 59 inches or 4.9ft.
  • Inside diameter – 11/16 or 0.70 inches or 17.79 mm
  • Outside diameter – 15/16 or 0.96 inches or 24.47 mm

An upper dual drain option has the same measurements as a single drain, while a lower dual drain has these measurements:

  • Inside diameter – 5/16 or 0.336 inches or 8.53 mm
  • Outside diameter – 9/16 or 0.565 inches or 14.36 mm
drain hose for portable ac

10. Danby Portable Air Conditioner Drain Hose Size

Danby portable air conditioners mostly come with a drain hose with a length of 5 feet and an inner and outer diameter of 10-20 mm and 23-30 mm, respectively.

11. Arctic King Portable Air Conditioner Drain Hose Size

Arctic King portable air conditioner will mostly fit standard drain hoses with a length of 4-7 ft. and an inner and outer diameter of 10-20 mm and 23-30 mm, respectively.

People Also Ask

1. What Size Hose Do I Need for A Portable Air Conditioner?

A portable air conditioner will mainly require a drain hose that’s 4-7 feet long and with an inner and outer diameter of 10-20 mm and 23-30 mm, respectively. However, some portable air conditioners require drain hoses as wide as 5 inches.

2. Does A Portable AC Need a Drain Hose?

Though you can run an air conditioner without a drain hose in dehumidifier mode or use a manual bucket, you need a drainage hose for air conditioner to vent out the condensation. The drain hose will discourage moist conditions by venting out the condensed water, which could spike mold growth.

3. What Size PVC Is Used for AC Drain Line?

You need a PVC with a diameter of about ¾ inches for an air conditioner drain line. Confirm, however, from the manual or ask the manufacturer about the size of the plastic drain hose pipe for air conditioner if unsure.

4. What Is the Diameter of the AC Condenser Drain Line?

An air conditioner’s condensate drain line requires a drain line with an internal diameter of at least ¾ inches or 19mm for effective drainage. But given that the measurements may vary slightly depending on the AC brand, confirm from your manual.

5. Are All Portable Air Conditioner Hoses the Same Size?

No, all portable air conditioner hoses are not the same. Yes, we’ve standard or universal drain hoses, but even so, they come in a range of sizes, such as 4-7 feet long. Therefore, you should get the size correctly before replacing your AC drain hose.

Closing Thought:

Generally, a portable air conditioner drain hose size may vary from brand to brand. So you should confirm from the manual. In most cases, a standard drain hose measuring 4-7 ft. long has an inner diameter of 10-20 mm and an outer diameter of 23-30 mm.

Also Read: