21 products

Best Sellers

The parts trade customers and DIYers reorder most, from central heating inhibitor and press fit fittings to MAPP gas torch kits and replacement valve heads.

  • Same-day dispatch before 1pm
  • Free UK delivery over £90
  • Trade prices when you log in
More about Best Sellers

Discover the products our customers keep coming back for. From reliable valves and quality fittings to heating components trusted by tradespeople and homeowners alike, our Best Sellers collection brings together the top-rated products from across the Lava range.

Whether you're tackling a full heating installation or a quick plumbing fix, these are the products that consistently deliver.

- Trusted by trade professionals and DIYers
- Top-rated across plumbing, heating, and fittings
- Stocked and ready to ship

LavaTap 2.4 L boiling water tank

LavaTap

LavaTap Boiling Water Tank

Rated 4.3 out of 5. (12)

In stock

£124.99
£104.16 excl. VAT
LavaTap lead welding torch kit with 1 x 400g MAPP gas cylinder

Todays Tools

Lead Welding Kit Fine Nozzle Blow Torch with 400g Mapp Gas - 1, 2 or 4 Cylinders

Rated 3.3 out of 5. (3)

In stock

From£54.99
£45.83 excl. VAT
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VT1 2-port valve actuator head, a direct replacement for Honeywell V4043H. Fits the existing valve body

VT1

VT1 2 Port Valve Actuator Head Replacement for Honeywell V4043H V4043H1056 Suits 22mm 28mm

Rated 5.0 out of 5. (22)

In stock

£28.99
£24.16 excl. VAT
Siliphos Balls Including O Ring Combimate Refill Pack 800g Lava

Siliphos Balls Including O Ring Combimate Refill Pack 800g

Rated 4.9 out of 5. (24)

In stock

£21.68
£18.07 excl. VAT
FlushDaddy NP254 Toilet Dual Flush Valve 1.5 Inch and 2 Inch Universal Push Button

LavaTap

FlushDaddy NP254 Toilet Dual Flush Valve 1.5 Inch and 2 Inch Universal Push Button

Rated 4.8 out of 5. (10)

In stock

£21.99
£18.33 excl. VAT
LavaTap boiling water tap filter kit: filter housing with cartridge

LavaTap

LavaTap Boiling Water Tap Filter Kit

Rated 5.0 out of 5. (4)

In stock

£29.99
£24.99 excl. VAT
LavaTap TTH2CT 2 channel programmer - main

TotalHome

TotalHome TTH2CT 7 Day 2 Channel Programmer, Honeywell ST9400C Replacement

Rated 4.8 out of 5. (24)

In stock

£55.99
£46.66 excl. VAT
LavaTap 22mm PEX barrier pipe, white, 25m coil

LavaTap

LavaTap 22mm PEX Barrier Pipe White 25m Coil

Rated 5.0 out of 5. (2)

In stock

£37.99
£31.66 excl. VAT
Danfoss HPA2 actuator head with box, guide and screws

Danfoss

Danfoss HPA2 2 Port Actuator Head 087N6579

Rated 5.0 out of 5. (19)

In stock

£39.99
£33.33 excl. VAT
LavaTap wireless programmable thermostat and relay box kit, replacement for Honeywell CM927

Resideo (Honeywell)

Wireless Programmable Thermostat Honeywell CM927 CM921 CM727 Replacement

Rated 4.7 out of 5. (23)

In stock

£72.99
£60.83 excl. VAT
TotalHome TTHWP wired programmable room thermostat, Honeywell CM907 replacement

TotalHome

TotalHome TTHWP Wired Programmable Room Thermostat, Replaces Honeywell CM907

Rated 5.0 out of 5. (1)

In stock

£49.99
£41.66 excl. VAT
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