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Sustee Water Meter - CORE REFILLS 2 Pack (3 sizes)

$16.00 NZD

Pick your size above

Small, Medium and Large available above. A single pack comes with TWO core refills included, giving you at least a year's supply (each core lasts 6 to 9 months).

How long does a Sustee refill last?

One core will last about 6 months on average. Your Sustee comes with the housing (which is reusable) and one core already inserted in the housing, ready to use. When it's time for a new core, get them here. Just pick Small, Medium or Large to match your size of Sustee.

How do I know when I need a new refill?

If your Sustee shows no reaction or colour changing at all but is not clogged or blocked, and you've had to about 6 months or longer, it's likely time for a refill. 

Are the core refills recyclable?

Yes! Keep the housing. It's reusable. Don't throw it away! The core inside is made of natural fibres which can be broken down by microorganisms.


How do I change the core?

Take your Sustee out of pot. If it's clogged or blocked with dirt, give it a clean first (follow the directions above). There are 3 components inside your Sustee, the core, a blue sheet and straw. It's not likely - but still possible - that the straw could get left behind inside the housing. If this happens, remove it with a pair of tweezers.

Remove the top and bottom screw caps. Pull out the old core. Insert the new refill core. Put the caps back on and off you go. 

When changing the core, take the new core out right before you need it. If you do it too early and it discolours, it won't impact it's ability to read water or how long it lasts. 

How to change Sustee core refill

What size Sustee do I have?

Sustee come in 3 sizes.

 is for all the little guys. The entire length is 12cms

MEDIUM is the go for most standard indoor plants. The whole length is 18cms

LARGE is for all your bigger potted babes, and great for outdoor container plants too. The entire length is 25cm.  

Customer Reviews

Based on 1 review
Dianne Leaming

I love this product and have been using them for about the past 18 months

Shipping and Delivery FAQ's


 is FREE for all orders over $80. Orders under $80: Auckland Standard $5, signature required $7, or rural $9. Rest of the North Island and the South Island: Standard $7, signature required $9, or rural $11. Plants, fragile and overweight/oversize parcels have separate rates. 


Stock levels are live. Everything showing in stock online, is in stock right here, right now, in Auckland New Zealand, ready to ship. No drop shipping from other countries. No delays.



Orders ship every week-day, Monday to Friday. Orders placed before 7pm Monday to Thursday leave the next morning. Zoom zoom! Fri, Sat & Sun orders leave Monday (or the next working day).



Normal delivery is 1 to 3 working days. Rural and some regions can take a day or 2 longer, depending on where you're based (orders ship from Auckland). 

More about shipping and delivery > 



"I can’t recommend love that leaf highly enough. I’ve bought a couple of times so far and on both occasions Anna has been more helpful than I could possibly wish for. 5 stars! Don’t hesitate to order from Love That Leaf. Excellent service and super fast delivery." Rob Gordon

Why choose to buy from Love That Leaf?


When you buy from me you're supporting a small, local, family business. Love That Leaf is a registered NZ business, based in Auckland. 


You'll get your planty goodies super fast. Everything showing in stock on the website is right here in NZ, in stock, ready to ship. I ship daily, Monday to Friday. Orders normally leave the courier the same or next working day. Zoom zoom!


I stand by everything I sell and will always help put right anything that goes wrong. When you choose to buy from a registered NZ business (like me), you're also covered by the Consumer Guarantees Act, unlike overseas purchases or private sales, where you can end up stuck with no rights if anything arrives damaged or stops working.


I won't go AWOL on you. I'm here for support and advice anytime, even if you haven't bought from me yet. A lot of lovely people helped me along my plant journey, and I want to pay it forward. Please don't hesitate to ask for help. No obligation at all to purchase. 


"Super impressed with this business. Something that is lost nowadays, is customer service. This however is not the case with Anna from Love that Leaf. Very happy with my purchase, very happy with the product information provided and very happy with the quick shipping and great packaging. Thanks!" Melayna Anderson

FREE shipping for orders $80+
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100% NZ In stock in NZ ready to ship
Fast delivery 1 to 2 days for most of NZ
FREE Shipping For all orders $99+ shipping NZ wide
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100% NZ NZ owned. All in stock locally.
Guaranteed :) Anything wrong I'll put it right