4.9 out of 5 (500+ store reviews)
Perfect fit for my RO system. The size was exactly what I needed, delivery was fast and installation was as easy as push and go.— Mark T., verified buyer store review
MPN
£7.99 inc. VAT
*ETA shown applies when next-day delivery is selected at checkout.
Order before the delivery cut-off for the fastest available dispatch. Delivery options and final prices are confirmed at checkout.
Our size guide and fitting advice help you choose the right connection first time.
View Size GuideNot sure which fitting you need? Our experts are here to help you choose the right size and fitting for your system.
Learn moreThe Reset Adapter is the small but essential accessory that lets you reactivate a Water Block leak prevention device after it has triggered and shut off your water supply. Once the Water Block detects an unusually high flow and closes, it stays closed – the Reset Adapter is what releases the trapped pressure inside the device so it can be reset and put back into service.
When the Water Block trips – whether from a genuine leak, a burst pipe, or a high-flow event like a long shower or a filling washing machine – it locks shut. Without the Reset Adapter, the only way to reopen the device is to isolate the supply, disconnect the Water Block from the plumbing and bleed it externally. That's an inconvenient job under a sink or behind a washing machine, and one that customers usually only have to do once before deciding the adapter is worth the small upfront cost.
With the Reset Adapter you can reset the Water Block in seconds, in situ, without disconnecting any pipework.
The whole process takes under a minute and saves taking the Water Block out of the system every time it activates.
| Function | Resets triggered Water Block leak prevention devices |
| Connection | 3/4" BSP |
| Compatible with | 3/4" BSP Water Block leak prevention devices |
| Material | Brass / engineering plastic (per manufacturer) |
Follow the manufacturer’s installation guidance and check all connections before leaving the installation.
Order before our dispatch cut-off — 3pm Monday to Friday, or 12pm on Saturday — and your order is sent the same day; anything after that follows the next working day. We don’t dispatch on Sundays, and you’ll get a tracking link by email as soon as your order is on its way.
Choose your UK delivery option at checkout:
We also ship internationally, with rates calculated at checkout.
Returns & refunds
Changed your mind? You have 30 days to return any unused filter in its original sealed packaging for a refund, or 90 days for exchanges. Start at our returns portal and either generate a prepaid Royal Mail label (£3.49, deducted from your refund) or use your own courier — exchanges are always free to return. We approve refunds within 24 hours of your return reaching us; your bank may then take 3–5 working days to show the funds.
The Reset Adapter is the small but essential accessory that lets you reactivate a Water Block leak prevention device after it has triggered and shut off your water supply. Once the Water Block detects an unusually high flow and closes, it stays closed – the Reset Adapter is what releases the trapped pressure inside the device so it can be reset and put back into service.
When the Water Block trips – whether from a genuine leak, a burst pipe, or a high-flow event like a long shower or a filling washing machine – it locks shut. Without the Reset Adapter, the only way to reopen the device is to isolate the supply, disconnect the Water Block from the plumbing and bleed it externally. That's an inconvenient job under a sink or behind a washing machine, and one that customers usually only have to do once before deciding the adapter is worth the small upfront cost.
With the Reset Adapter you can reset the Water Block in seconds, in situ, without disconnecting any pipework.
The whole process takes under a minute and saves taking the Water Block out of the system every time it activates.
| Function | Resets triggered Water Block leak prevention devices |
| Connection | 3/4" BSP |
| Compatible with | 3/4" BSP Water Block leak prevention devices |
| Material | Brass / engineering plastic (per manufacturer) |
Follow the manufacturer’s installation guidance and check all connections before leaving the installation.
Order before our dispatch cut-off — 3pm Monday to Friday, or 12pm on Saturday — and your order is sent the same day; anything after that follows the next working day. We don’t dispatch on Sundays, and you’ll get a tracking link by email as soon as your order is on its way.
Choose your UK delivery option at checkout:
We also ship internationally, with rates calculated at checkout.
Returns & refunds
Changed your mind? You have 30 days to return any unused filter in its original sealed packaging for a refund, or 90 days for exchanges. Start at our returns portal and either generate a prepaid Royal Mail label (£3.49, deducted from your refund) or use your own courier — exchanges are always free to return. We approve refunds within 24 hours of your return reaching us; your bank may then take 3–5 working days to show the funds.