Harvey Original Block Salt for Water Softeners, 12 × 4 kg

Harvey Original Block Salt is a Grade A salt refill for compatible block-salt water softeners. This listing describes six packs with two 4 kg blocks per pack, a substantial supply that requires storage space and the correct softener format.

At a glance

The listing states six packs, with two 4 kg blocks in each pack.
Described as Grade A, food-grade salt meeting BS EN973.
Suitable for most standard block-salt softeners, with specific model exclusions.

Price

£56.10Save 15%

Reference price: ~~£66.00~~

Price checked: 14 Nov 2026

View offer

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Pros and cons

Pros

The multi-pack supply is useful for regular softener maintenance and reduces the need for frequent replenishment.
The listing identifies supported softener brands and names models that are not suitable.

Technical specifications

8 specifications

Identity
Brand	Harvey

Pack and weight
Listed item weight	4 kg
Pack quantity	6 packs
Blocks per pack	2 salt blocks
Weight per block	4kg

Salt and origin
Grade and quality claim	Grade A / Food Grade
Standard claimed	BS EN973
Country of origin	United Kingdom

What to know before buying

Compatibility is limited to block-salt softeners. The listing excludes HarveyArc, Minimax Innova and TwinTec Cobalt, which use Mini Curve Salt Blocks. It estimates one block per person monthly, but says use varies with water consumption.

Who is it for?

A good fit for

Owners of compatible traditional block-salt water softeners who want a multi-pack refill.
Buyers looking for salt described as Grade A and food grade.

Less suited to

Owners of HarveyArc, Minimax Innova or TwinTec Cobalt softeners.
Households whose softener uses salt tablets or a different block format.

Harvey Original Block Salt for Water Softeners, 12 × 4 kg · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 3,310 ratings

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

Customer feedback reports that the blocks work in softeners and that water feels softer, with positive comments about quality and value. Experiences are mixed on durability and handling: some find the blocks long-lasting and easy to use, while others report breakage on arrival or difficulty loading them. For buyers, the reported issues make careful inspection and checking the softener's loading space relevant, especially with a 4 kg block format. Some feedback also differs on saltiness, without establishing a specific product fault.

Positive themes

Customers report effective softening and positive quality and value.

Mixed feedback

Feedback is mixed on durability and ease of use, including reports of breakage on arrival and difficulty inserting blocks.
Customers differ in their impressions of the blocks' saltiness.

Frequently asked questions

How many blocks are listed?

The listing says six packs, each containing two blocks, for 12 blocks in total. Each block is stated to weigh 4kg.

Will it fit every Harvey softener?

No. The listing says it suits most standard block-salt models but excludes HarveyArc, Minimax Innova and TwinTec Cobalt. Check the softener model and required salt shape.

How often might the salt need replacing?

The listing estimates one block per person per month, while noting that actual use varies with water consumption.

What standard does the salt claim to meet?

The product is described as Grade A, food-grade salt meeting BS EN973.