Category overview
Filter products
Der Wasserfilter – Accessories
We have clearly listed all the necessary accessories for your water filter, making them easy to access. Our range includes a variety of replacement parts and extensions to ensure your water supply operates with maximum efficiency.
Sustainability through High-Quality Replacement Parts
A well-maintained water filter is the heart of any clean water supply. With our durable accessories and replacement components, you ensure long-term functionality while also protecting the environment by reducing waste production.

The ASV9 angle valve adapter from John Guest is the perfect solution for connecting water filters, reverse osmosis systems and other appliances directly to your cold water supply. With its precise 3/8" thread and 1/4" tube connection, it offers the standard size for most water filter systems, ensuring maximum compatibility.The built-in check valve reliably prevents backflow into the water line, while the integrated shut-off valve makes it easy to stop the water flow whenever maintenance or filter replacement is required. This ensures safety and convenience for your water filter or reverse osmosis system.Made from durable brass and high-quality plastic, the ASV9 provides a secure and long-lasting connection. With this John Guest spare part, you get proven quality and reliable performance for your water installation.Benefits at a glance:Standard 1/4" size for reverse osmosis systems and water filtersIntegrated check valve for safe operationConvenient shut-off valve for easy maintenanceHigh-quality materials for long-lasting useSuitable for coffee machines, water dispensers and water treatmentThe product range is not suitable for compressed air, explosive gases, petroleum, or other liquids or in heating systems or similar applications.

Simplifies the tightening and loosening of the John Guest connectors. Suitable for the following connector sizes: 3/16" 1/4" 5/16" (8mm) 3/8" 1/2"

John Guest polyethylene hose/pipe, food grade, 1/4", 6.35x4.3mm, colour natural, max. 15 bar (at 20°C),Approvals for drinking water: DVGW worksheet W270, KTW, NSF, WRAS and FDA The plastic tubes made of polyethylene by John Guest have proven themselves for years in numerous fields of application.They are particularly resistant to pressure and temperature, vibration, corrosion, ageing and impact resistant, and are lightweight.They are ideal for John Guest quick-connect fittings and fluid and air applications.For potable water systems, approvals are available following DVGW worksheet W270, KTW, NSF and WRAS, complying with DIN 2001 specifications.Other properties:Plastic tube made of polyethylene (LLDPE)Approval according to DWGW, KTW, NSF, WRAS and FDAPressure resistance: up to 15 bar; please refer to the datasheetSuitable for food, drinking water and water treatment applicationsSuitable for vacuum applicationsGood for use with air, non-flammable gases like (e.g. N2 and Co2)Other colours are available on request.

John Guest polyethylene hose/pipe, food grade, 1/4", 6.35 x 4.3 mm, colour red, max. 15 bar (at 20 °C),Approvals for drinking water: DVGW worksheet W270, KTW, NSF, WRAS and FDA The plastic tubes made of polyethylene by John Guest have proven themselves for years in numerous fields of application.They are particularly resistant to pressure and temperature, vibration, corrosion, ageing and impact resistant, and are lightweight.They are ideal for John Guest quick-connect fittings and fluid and air applications.For potable water systems, approvals are available following DVGW worksheet W270, KTW, NSF and WRAS, complying with DIN 2001 specifications.Other properties:Plastic tube made of polyethylene (LLDPE)Approval according to DWGW, KTW, NSF, WRAS and FDAPressure resistance: up to 15 bar; please refer to the datasheetSuitable for food, drinking water and water treatment applicationsSuitable for vacuum applicationsGood for use with air, non-flammable gases like (e.g. N2 and CO2)Other colours are available on request.

The blind plugs are mad of polyethylene approved for drinking water applications. They are ideally suited for closing connectors with a 1/4" tube OD watertight.

The blind plugs are mad of polyethylene approved for drinking water applications. They are ideally suited for closing connectors with a 1/4" tube OD watertight.

Locking clip suitable for all 3/8" John Guest Speedfit connections. Properties: for drinking water applications and water treatment systems acetal copolymer (POM) mountable without tools quick, multiple release of the connection possible

Locking clip suitable for all 1/4" John Guest Speedfit connections. Properties: for drinking water applications and water treatment systems acetal copolymer (POM) mountable without tools quick, multiple release of the connection possible
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