Support / Guides / What 400GPD Capacity Class Actually Means

The number on the box is a class label — your kitchen does not run on sticker math.

What 400GPD Capacity Class Actually Means

For: Myanmar home buyers comparing RO sizes

RO Machine 400GPD product — capacity class, not a field guarantee

Buyers in Yangon often ask the same first question: “If it says 400GPD, will my home get 400 gallons every day?”

Short answer: No — not as a promise.

400GPD is a capacity-class name. It helps you compare machines in the same size conversation. It is not a laboratory certificate for your apartment’s daily jug count.

This guide explains the difference in plain language — so you can talk to AQUAPOLAR about RO Machine 400GPD without being sold a fantasy number.

GPD = class language, not your kitchen calendar

Capacity class idea — label vs real daily use

In the market, GPD (gallons per day) is used to name RO system classes: 100 / 200 / 300 / 400 / 600 / 800 and so on.

What the class is good for:

Comparing small home RO vs higher-demand home / light-use classes
Giving sales and installers a shared starting point
Avoiding “random Facebook mystery box” sizing

What the class is not:

A guarantee of exact litres in your Yangon kitchen every morning
Proof that a cheaper “400” sticker equals the same real-world result
A reason to skip questions about pressure, space, and peak use

At AQUAPOLAR we say RO Machine 400GPD when we mean that class — then we confirm fit for *your* home.

Why real output moves (even with the same class)

Industry reality (not a fake AQUAPOLAR lab claim): purified output changes with conditions such as:

Feed water quality and temperature
Pressure (low pressure homes feel this fast)
How the system is installed (tank, plumbing, drain)
How you use water — peak hour vs quiet afternoon

So two neighbours can own the same class name and still feel different results. That is normal. It is why honest sellers ask questions before quoting.

Peak demand beats “average per day”

Families rarely fail on a quiet Tuesday afternoon. They fail when:

Everyone needs water before leaving home
Cooking and drinking compete
Guests arrive

Sizing talk should start from the busiest hour, not a vague monthly average.

If that busy hour already hurts on a small home RO, a higher class such as 400GPD enters the conversation — see signs your home RO is no longer enough.

Who usually discusses RO Machine 400GPD

Typical home cases we hear in Myanmar:

Small under-sink / compact RO feels slow at peak
Family drinks purified water daily and cooks with it often
Guests or remote work increased home demand
Buyer wants local Viber + Yangon / Insein showroom advice, not overseas datasheet shopping

Also read: RO Machine 400GPD for Myanmar Homes.

Bigger number is not always the right buy

Install space under cabinet still matters

Jumping to the largest GPD on Facebook because it “sounds safer” creates new problems:

Extra space / tank / drain needs you did not plan
Paying for capacity you never use
Skipping maintenance and support questions

Right class = matches peak demand + site reality. Sometimes that is 400GPD-class. Sometimes it is 300 or 600 after we hear your story.

What to send before we name a class

Practical checks before choosing RO class

Copy this to Viber 09668896889 or Get Quote:

Family size + guests
Busiest time of day (when water feels short)
Water source notes (city / well / tank; TDS if tested)
Current machine (if any) and what frustrates you
Space for unit and tank

We keep this honest: exact stages, membrane brand, warranty years, stock, and field output must be confirmed for your order — not invented from the GPD label alone.