Use Klarna anywhere, on your computer.

Shop, pay and track faster in the app.

Sign up to receive the latest news by email about Klarna’s services and promotions as well as Klarna’s partner deals & offers. Unsubscribe any time.

Explore our search engine and how we rank items.

Why are you seeing this?

Screwfix

Building Regulations Part L compliance kit with inline fast-fit magnetic filter for vertical installation and without the need for additional parts. Electrolytic scale inhibitor is suitable for whole house protection. Treatment chemicals can be added via the filter unit. Inhibitor and cleaner provided both treat 100Ltr systems. 2 Year Manufacturer's Guarantee (T&Cs Apply) 2 Year Manufacturer's Guarantee (T&Cs Apply)

Flomasta Central Heating Water Treatment Compliance Kit (6459V)

Protects against corrosion and limescale formation to maintain system efficiency. Suitable for mixed metal systems including aluminium. 310ml tube treats 100Ltr. Compatible with No Nonsense products and Universal Filling Kit. 1 Year Guarantee 1 Year Guarantee

Flomasta Central Heating Inhibitor 310ml (4792R)

Protects against corrosion and limescale formation to maintain system efficiency. Suitable for mixed metal systems including aluminium. 500ml treats 100Ltr. Compatible with No Nonsense products. 1 Year Guarantee 1 Year Guarantee

Flomasta Central Heating Inhibitor 500ml (8197R)

Provides single appliance protection from limescale. No chemicals, maintenance or earth bonding required. Can be mounted vertically or horizontally. Ideal for areas where the water hardness exceeds 200ppm. Can convert to ½" BSP enabling adaption to push-fit. Compression Connection Can Convert to 1/2" BSP Mount Vertically or Horizontally Compression Connection Can Convert to 1/2" BSP Mount Vertically or Horizontally

Flomasta Magnetic Compression Connection Scale Inhibitor 15mm (581CG)

Refill for InstaCheck inhibitor test (test 2).

Sentinel InstaCheck Test Strip Refill 50 Pack (495TJ)

Protector that prevents both system corrosion and limescale deposition. Maintains boiler and system efficiency. Prevents the formation of sludge and scale, contributing to a longer system life and helping reduce heating costs and maintenance bills. Can be injected into the system via radiator, air vent or boiler filling loop. Increased strength inhibitor suitable for all heating systems and compatible with all metals. Treats up to 125Ltrs. 1 Year Guarantee Protects against Corrosion & Scale Maintains Heating Efficiency Suitable for All Heating Systems Increased Strength Inhibitor 1 Year Guarantee Protects against Corrosion & Scale Maintains Heating Efficiency Suitable for All Heating Systems Increased Strength Inhibitor

Adey MC1+ Rapide Central Heating System Inhibitor 300ml (699KJ)

Suitable for sealed heating and cooling systems treated with corrosion inhibitor only. Not suitable for potable water. Features 1.5bar nitrogen gas precharge. 90°C System Flow Not Suitable for Drinking Water 90°C System Flow Not Suitable for Drinking Water

Flomasta Central Heating Expansion Vessel 12Ltr (980RG)

Flomasta Central Heating Expansion Vessel 8Ltr (769RG)

Professional quality electrolytic scale inhibitor, designed for easy installation into new or existing systems. Compact size and high quality finish, ideal where space is limited and/or the finished installation is visible. Provides whole house protection from limescale. No chemicals required. Domestic Durable All-Metal Construction High Quality Finish Suitable for Hot & Cold Water Suitable for Horizontal or Vertical Pipework Domestic Durable All-Metal Construction High Quality Finish Suitable for Hot & Cold Water Suitable for Horizontal or Vertical Pipework

Liff Electrolytic In-Line Scale Inhibitor 15mm (91448)

Central heating inhibitor and cleaner to protect against scale and corrosion. Treats up to 10 radiators. Suitable for use with all plastics and metals including aluminium. Effective within one hour. For heavily fouled systems circulate for up to 7 days. Includes handy peel out installer labels to leave evidence of treatment. Compatible with No Nonsense water treatment products. Supplied with filling kit for sealed systems. 1 Year Guarantee 1 Year Guarantee

Flomasta Central Heating Inhibitor, Cleaner & Filling Kit 1Ltr 3 Pcs (1349J)

The Sentinel X100 central heating scale inhibitor provides comprehensive protection for all indirect central heating systems, including those containing aluminium. This 1-litre, non-acidic treatment effectively prevents scale and corrosion, which significantly impacts boiler efficiency and heating system performance. The colourless formula works to safeguard against pin-holing, helping to extend the lifespan of central heating installations and reduce ongoing maintenance needs for trade professionals. 1 Year Guarantee Ensures Optimum Boiler Efficiency Protects against Pin-Holing Non-Staining, Colourless Formulation Suitable For All Indirect Heating Systems 1 Year Guarantee Ensures Optimum Boiler Efficiency Protects against Pin-Holing Non-Staining, Colourless Formulation Suitable For All Indirect Heating Systems

Sentinel X100 Central Heating Scale Inhibitor 1Ltr (79683)

Disperses sludge, limescale and system debris. Suitable for mixed metal systems, including aluminium. Restores circulation and improves heating efficiency. After cleaning and flushing an inhibitor should be used. Compatible with No Nonsense products. For use in accordance with BS 7593 code of practice for treatment of water in domestic hot water central heating systems. 500ml treats 100Ltr. Treats 100 Litres Not Classified Under GHS/CLP Regulations Treats 100 Litres Not Classified Under GHS/CLP Regulations

Flomasta Central Heating Cleaner 500ml (8506R)

In-line scale inhibitor and conditioner with full bore flow, eliminating requirement for bypass or separate drain. Features 360° magnetic flux and internal coil. Includes control panel showing coil current, running and set temperature. Constant temperature monitoring optimises energy efficiency. Reduces plant downtime and prolongs plant life. Install isolating valves before and after the unit to facilitate servicing. 1" BSP Male Thread Connection LCD Display Max. Flow Rate: 1.5Ltr/sec Suitable for Drinking Water Systems Suitable for 1" Pipe Stainless Steel Pipework Volt-Free Contacts for Remote Monitoring No By-Products or Consumables 1" BSP Male Thread Connection LCD Display Max. Flow Rate: 1.5Ltr/sec Suitable for Drinking Water Systems Suitable for 1" Pipe Stainless Steel Pipework Volt-Free Contacts for Remote Monitoring No By-Products or Consumables

BWT Powermag PM100s Electromagnetic Scale Inhibitor (6488R)

Care pack that helps to extend boiler life. Consists of a Greenstar mini 22mm system filter and a wireless programmer with a backlit LCD display and the capability for 6 pre-set programmes. Also includes a keyless filling link, inhibitor and cleaner bottles. Suitable for system and combi boilers. 5-32°C Temperature Range Suitable for Combi & System Boilers Battery-Powered Thermostat Rechargeable Battery-Operated Receiver Backlit LCD Display 7 Day Programmable 6 Pre-Set Programmes 6 Time & Temperature Settings per Day Without Boost Facility 5-32°C Temperature Range Suitable for Combi & System Boilers Battery-Powered Thermostat Rechargeable Battery-Operated Receiver Backlit LCD Display 7 Day Programmable 6 Pre-Set Programmes 6 Time & Temperature Settings per Day Without Boost Facility

Worcester Bosch Greenstar 2-Channel Wireless Heating System Care Pack (129KG)

PSI 15 replacement cartridge Replace Every 12 Months Easy to Replace Recycle Empty Cartridge Where Facilities Exist Replace Every 12 Months Easy to Replace Recycle Empty Cartridge Where Facilities Exist

BWT Scale Inhibitor Replacement Cartridge (37876)

Protects against corrosion and scale in mixed metal central heating systems to prevent breakdown and premature boiler failure. Inhibits scale, corrosion and sludge. High performance and non-toxic. Stops frequent venting of radiators and prevents cold spots. Reduces maintenance costs and maintains energy efficiency. One bottle treats a 130Ltr system, up to 16 radiators, or 250m² of underfloor heating. Ideal for new and existing systems. 1 Year Guarantee 1 Year Guarantee

Fernox F1 Protector Central Heating Inhibitor 500ml (342PP)

Autodoc

Voltage [V]: 14,6; Manufacturer Restriction: OE  BOSCH; Rated Voltage [V]: 14; Electronic Regulator:

HITACHI 2500520 Alternator Regulator Voltage: 14,6V

Elemis

A clinically proven* balm firms and smoothes the delicate skin in the neck and décolleté area for a more youthful appearance. | ELEMIS Pro-Collagen Neck & Décolleté Balm, 50ml

ELEMIS Pro-Collagen Neck & Décolleté Balm, 50ml

Fanatics

Show your team pride and stay comfortable with this Nike Dri-FIT BP Pre Game Top, designed for dedicated Los Angeles Dodgers fans. Nike's Dri-FIT technology wicks away moisture, keeping you cool and dry during pre-game warmups or everyday wear. The lightweight, breathable fabric of this Los Angeles Dodgers tee offers a relaxed fit and unrestricted movement for ultimate comfort.

Los Angeles Dodgers Nike Dri-Fit BP Pre Game Top - Mens

Hoka

Recovery is an art form. Just ask any long-distance runner. Designed to pair perfectly with our Essential Hoodie, this buttery soft jogger employs the same heavy brushed-back fleece for cloud-like comfort. A true sweat pant through and through, this plush recovery essential provides a relaxed fit for those cozy, post-workout vibes. HOKA Men's Essential Jogger in Beige Cloud Topo, Size Large Pants

HOKA Men's Essential Jogger in Beige Cloud Topo, Size Large Pants

Not only is this pre-walker boot so cute, but it's easy to put on and take off. Featuring a cozy fleece, a stretch cuff upper, and a rear pull tab with our signature UGGbraid, it's all in the details with our Baby Nesti. Plus, it has a slip-resistant rubber print on the outsole for extra ease. | UGG® Infant's Nesti Bootie in , Size 18 | Textile/Recycled Materials

inhibitor screwfix