Water Softener Salt Tablets 25kg
Most PopularPremium 99%+ purity salt tablets for tablet-fed water softeners. Fast-dissolving and low-residue, delivered next day.
- 99%+ purity
- Next-day delivery
- Free delivery over £50
Secure checkout · 30-day money-back guarantee
Why choose this salt
Soft water, no limescale
Keeps your softener working efficiently for limescale-free taps, glassware and heating, plus softer skin and hair.
Fast-dissolving, low residue
High-compression tablets dissolve cleanly with minimal mush or bridging in the brine tank.
Fits tablet-fed softeners
The standard salt format for the vast majority of UK tablet and granular softeners.
Will it fit my softener?
Suitable for tablet-fed and granular water softeners (e.g. Harvey, Kinetico, BWT and Tapworks tablet models, and most UK brands). Not for block-only machines.
How much will I need?
Most households use roughly one 25kg bag per month, depending on water hardness, household size and your softener’s settings. Keep the salt topped up above the water line.
Specifications
- Pack size
- 25kg bag
- Purity
- 99%+
- Format
- Compressed salt tablets
- Grade
- Premium Grade
- Suitable for
- Tablet / granular water softeners
Next-day delivery
Order before 2pm for next working day (Mon to Fri).
Free over £50
Free UK mainland delivery on orders over £50.
Kerbside on pallets
Pallet quantities are delivered kerbside.
30-day guarantee
Not happy? 30-day money-back guarantee.
Frequently asked questions
How much salt will I need?+
As a rule of thumb, around one 25kg bag a month for an average household, more in hard-water areas or with heavy use. Check your softener’s manual for its recommended setting.
Will these tablets fit my softener?+
Yes, if your machine takes tablet or granular salt (most UK softeners do). If your machine specifically requires salt blocks, choose our 8kg blocks instead.
How fast is delivery?+
Next working day on orders placed before 2pm. Delivery is free on orders over £50; pallet quantities are delivered kerbside.
Can I buy by the pallet?+
Yes, choose a pallet quantity on this page for the best price per bag. Pallets are delivered kerbside.
Ready to order?
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Water Softener Salt Tablets 25kg
from £9.99 / bag