Subscriptions for filters and replacement cartridges

A water filter cartridge should be changed every two or three months — and almost nobody remembers when they last did. In this niche a subscription is not merely more convenient than a reminder: it is the only thing that works, because there is nobody to remind — the customer does not think about the product at all.

Why subscriptions work for consumable cartridges

A calendar-based replacement the customer never remembers

The cycle is fixed by the manufacturer

A water cartridge is 2–3 months, a brush head 3 months, a vacuum bag a month or two. The subscription frequency is not invented — it is written in the appliance manual.

Overrunning is invisible but harmful

An old filter gives no signal — the water just gets worse, the brush cleans less well. The customer never sees the moment of replacement, so it is either a subscription or "someday". That is the strongest argument for a subscription in this niche.

Compatibility solved once

The hardest part of rebuying a cartridge is recalling the appliance model and finding a compatible one. In a subscription that is settled at the first order and never comes up again.

A small item, a high LTV

One cartridge is a small order, but the appliance lives for years and needs replacements all along. A subscription turns a penny line item into a multi-year stream of orders.

What the customer sees

The dashboard is rarely needed here — and that is the point: it all just runs. But when needed, the customer can:

postpone a delivery if the replacement is not due yet;
change the cartridge model after replacing the appliance;
add a second appliance — another cartridge in the same delivery;
pause while the appliance is not in use;
update the card and the pickup branch.

How to launch it in your store

Three steps, from the request to the first subscription

Request and access
You fill in the form, we get in touch within one business day and open access to the platform and a test account.
The widget in your store
A ready-made integration or the widget through the API — about 10 minutes on a finished module, a few developer hours on a custom site.
Switch subscriptions on
You pick which products are available on subscription. The customer chooses their own frequency from the ready-made options — from weekly to once in a few months.

How much it costs →

Questions about cartridge subscriptions

Customers have different appliance models. How do we avoid mix-ups?

Compatibility is fixed once — when the subscription is set up for a specific cartridge. That exact one keeps arriving. If the customer changes the appliance, they swap the product in the subscription rather than hunting compatibility in the catalogue again.

The order value is small — will delivery eat the margin?

For small items set a rarer frequency with several cartridges per delivery — a half-year set every six months. Fewer shipments, a higher order value, the same regularity.

We also sell the appliances themselves. Where does the subscription fit?

The appliance is a one-off purchase in the same cart, and the consumables subscription is offered right at that moment. It is the best point of conversion: the customer has just learned the cartridge needs changing.

Launch a consumables subscription

Send us a request — we will look through your catalogue and suggest which items to move to subscription first.