Harvey Block Salt for Water Softeners, 6 × 4kg Blocks

Blocks: Harvey Block Salt is a six-block refill for water softeners designed for block salt. Each block is listed at 4kg, and the salt is described as Grade A and food quality, compatibility is not universal, so check the exclusions against your softener model.

At a glance

Three packs contain six blocks in total, each listed at 4kg.
Described as Grade A food-grade salt meeting BS EN973.
The listing names several compatible softener ranges and identifies specific model exclusions.

Price

£28.04Save 15%

Reference price: ~~£32.99~~

Price checked: 12 Nov 2026

View offer

Pros and cons

Pros

The six-block quantity gives buyers a multi-refill supply in one order.
The listing identifies several compatible brands and explicitly names softener models that use a different salt-block format.

Technical specifications

9 specifications

Identity
Brand	Harvey

Pack and salt
Blocks per pack	Each pack contains 2 salt blocks
Number of packs	3 packs of Block Salt
Total blocks	6 blocks
Weight per block	4kg
Salt grade and standard	Grade A / Food Grade (standard BS EN973)
Manufacturing origin	United Kingdom

Compatibility
Suitable softeners	Suitable for most standard water softeners that use block salt, including most Harvey, Kinetico, Crown, Monarch, TwinTec and Minimax models (please note, it is NOT suitable for the following models: HarveyArc, Minimax Innova and TwinTec Cobalt models, as these use our Mini Curve Salt Blocks)

Dimensions and installation
Dimensions listed	30 x 25 x 10 cm; 24 kg

What to know before buying

The listing describes the salt as UK-crafted, but also says its salt is sourced from across Europe and shipped to a UK manufacturing facility, the listed dimensions and weight are combined as “30 x 25 x 10 cm, 24 kg” without clarifying what the dimensions refer to. Confirm your model uses standard block salt, not Mini Curve blocks, and note that one-block-per-month use is presented only as an estimate that varies with water usage.

Who is it for?

A good fit for

Owners of compatible standard block-salt water softeners seeking a multi-pack refill.
Buyers who want the listing's stated Grade A / food-grade salt classification and BS EN973 standard.

Less suited to

Owners of HarveyArc, Minimax Innova or TwinTec Cobalt softeners, which the listing says use Mini Curve Salt Blocks.
Anyone whose softener uses tablets or another salt format rather than standard blocks.

Harvey Block Salt for Water Softeners, 6 × 4kg Blocks · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 3,308 ratings

5 stars72%72%
4 stars15%15%
3 stars6%6%
2 stars2%2%
1 star5%5%

Customer feedback is generally favourable: reports describe the blocks working in softeners, water feeling softer, and positive quality and value. Durability and ease of use are mixed, with some customers reporting breakage on arrival or difficulty fitting blocks, for buyers, careful handling and confirming the block format matter. The listing shows 4.5 out of 5 stars from 3,308 ratings, but that aggregate does not explain individual experiences.

Positive themes

Customers report that the blocks work in softeners and make water feel softer, quality and value also receive positive feedback.

Negative themes

Some customers report severe breakage on arrival.

Mixed feedback

Durability and ease of use receive mixed feedback, including reports of difficulty inserting blocks.
Feedback about saltiness is mixed.

Frequently asked questions

How many blocks are included?

The listing states three packs with two blocks per pack, six blocks total, and 4kg per block.

Will these fit my water softener?

They are listed for most standard block-salt models, including many Harvey, Kinetico, Crown, Monarch, TwinTec and Minimax units. HarveyArc, Minimax Innova and TwinTec Cobalt are specifically excluded, confirm your model and salt format.

What grade of salt is claimed?

The listing describes it as Grade A / food-grade salt and states the standard as BS EN973.