Growth Technology pH probe Refill & Storage
Growth Technology pH probe Refill & Storage
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Order by 3pm Mon–Fri — we aim to post same day · FREE Express Delivery over £60 · 1–2 working days · Free Wembley pickup
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Description
Keep your pH probe accurate for years, not months
Growth Technology pH Probe Refill & Storage Solution is a KCl-based liquid for topping up and storing liquid-filled pH electrodes. Meters drift and eventually fail when the internal reference fluid runs low or the sensitive glass bulb is left to dry out between uses, so this solution keeps the probe hydrated, responsive and reading correctly for far longer, protecting the accuracy every hydroponic feed depends on.
Key Benefits
- Refills liquid-junction pH probes that have lost internal reference solution
- Storage medium that keeps the probe tip wet between readings
- Protects electrode life by preventing the glass bulb from drying out
- Faster response and steadier calibration next time you test
Drifting readings and a probe that won't hold calibration?
A pH probe stored dry or in plain water loses its reference fluid and the glass bulb dries, so readings drift and slow until the electrode is effectively dead. Correct KCl storage solution keeps the junction saturated so the probe stays accurate and quick to settle.
How to Use
- Top up your meter's probe reservoir as directed in the meter's instructions, checking the level regularly
- Between readings, stand the probe tip in the storage solution rather than leaving it dry or in plain/RO water
- Not suitable for gel-filled or solid-state electrodes

FREE Express Delivery on orders over £60. We aim to post same day on Express Delivery — order by 3pm Mon–Fri — and delivery takes 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.

