Home / Filters / Softener Salt & Limescale Supplies Softener Salt & Limescale Supplies Tablet, block and granular salt to keep a softener regenerating, plus hardness test tablets and a plug-in descaler for homes where a softener is not an option.
Best for: Anyone already running a softener, or checking whether theirs still works · Check price
Read our full guide: Water Softener Salt Guide: tablet, block or granular Not sure which to pick? Check your water first.
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Hydrosalt Salt Tablets 25kg
Softener Salt & Supplies
Why it fits Tablet salt, which is what most metered single-cylinder softeners take 25kg bag suits a household that tops up monthly rather than weekly Highest-rated softener salt on Amazon UK, 4.7 stars across more than 2,000 reviews What it won't do Does not fit block-salt softeners such as Harvey or Kinetico UK models Affiliate link: we may earn a commission at no extra cost to you.
AQUASOL Salt Tablets 3 × 25kg
Softener Salt & Supplies
Why it fits Three 25kg bags in one delivery, so fewer orders across the year Tablet format for metered single-cylinder softeners Rated 4.6 stars across more than 200 reviews What it won't do Does not fit block-salt softeners Affiliate link: we may earn a commission at no extra cost to you.
BWT Block Salt 8kg (2 × 4kg)
Softener Salt & Supplies
Why it fits Two 4kg blocks, the format twin-cylinder softeners from Harvey, Kinetico and BWT take Blocks drop straight into the cabinet with no scooping or spillage Rated 4.4 stars across more than 800 reviews What it won't do Does not fit tablet-salt softeners Affiliate link: we may earn a commission at no extra cost to you.
Monarch Ultimate Salt Tablets 10kg
Softener Salt & Supplies · BS EN 973 Class A
Why it fits Meets BS EN 973 Class A, the standard for salt used to regenerate softeners 10kg bag is light enough to lift into a tight cupboard From the same brand as Monarch softeners, so a safe match for one What it won't do Does not fit block-salt softeners Affiliate link: we may earn a commission at no extra cost to you.
Hydrosoft Granular Salt 10kg
Softener Salt & Supplies
Why it fits Granular salt for the softeners and dishwashers that specify it Dissolves faster than tablets, so it suits units with small brine tanks Rated 4.6 stars across more than 280 reviews What it won't do Does not suit most modern softeners, which specify tablets or blocks; check your manual first Affiliate link: we may earn a commission at no extra cost to you.
SimplexHealth Total Hardness Yes/No Test Tablets (pack of 2)
Softener Salt & Supplies
Why it fits A quick yes/no check that your softener is actually producing soft water Two tablets: test the softened tap and the unsoftened kitchen tap side by side Cheaper than a plumber's call-out when you suspect the resin is spent What it won't do Does not treat the water: it is a test, not a fix Does not give a number in mg/L, only a soft-or-hard answer Affiliate link: we may earn a commission at no extra cost to you.
Eddy Electronic Water Descaler (UK model)
Softener Salt & Supplies
Why it fits Wraps around the incoming pipe: no plumbing, no drain, no salt Keeps the minerals in the water, so no sodium and no separate drinking tap A low-cost trial for renters or flats where a softener cannot be fitted What it won't do Does not remove hardness: the water tests exactly as hard afterwards Not certified by any independent body, and the evidence for electronic descalers is weak, so treat claimed results with caution Affiliate link: we may earn a commission at no extra cost to you.
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