John Guest connections for VISION AQUA water filters
John Guest is the world's largest manufacturer of plastic push-in fittings, valves, tubing and hoses for plumbing and heating systems, beverage dispensing and pure water systems, pneumatics and compressed air, and specialist applications in the commercial and industrial sectors. Thanks to their high product quality, excellent flow rates and food-grade materials, they are ideal for use with VISION AQUA water filters.
Tool-free connection assembly
The John Guest Speedfit fittings allow for easy assembly and disassembly of tubing connections without additional tools. To establish a quick and durable connection, the John Guest plastic tubing is simply pushed into the fitting. This allows for easy repeated disassembly and reassembly of all John Guest Speedfit fittings.
Certified materials
All John Guest tubing connections used in VISION AQUA water filters are suitable and approved for use in the food, drinking water, and water treatment industries.
Category overview
Filter products

The PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties: for drinking water applications and water treatment systems Polypropylene (PP) mountable without tools fast, repeated disconnection possible very good flow propertiesThe product range is not suitable for compressed air, explosive gases, petroleum or other liquids as well as in heating systems or similar areas of application.

The PI Series for imperial tubing is manufactured from gray acetal copolymer (POM) and features food grade nitrile O-rings.It was developed for food, drinking water applications, water treatment systems, etc.Propertiesfor drinking water applications and water treatment systemsacetal copolymer (POM)mountable without toolsquick, multiple release of the connection possiblevery good flow propertiesThe connectors are also ideal for air, non-flammable gases (e.g. N2 and CO2) and vacuum applications.

The PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties: for drinking water applications and water treatment systems Polypropylene (PP) mountable without tools fast, repeated disconnection possible very good flow propertiesThe product range is not suitable for compressed air, explosive gases, petroleum or other liquids as well as in heating systems or similar areas of application.

The CI range is manufactured from white acetal copolymer (POM) and fitted with food grade EPDM O-rings. They are used specifically in water treatment, drinking water and beverage applications. They are also suitable for other liquids and are recommended in the given technical specification for alternating cold and hot water applications.Properties:simple and quick installation "right first time"ideal for compressed air and liquidsmountable without toolsfast, multiple disconnection possiblevery good flow propertiesThe product series is not suitable for use in compressed air and vacuum areas.

The PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties: for drinking water applications and water treatment systems Polypropylene (PP) mountable without tools fast, repeated disconnection possible very good flow propertiesThe product range is not suitable for compressed air, explosive gases, petroleum or other liquids as well as in heating systems or similar areas of application.

The PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties: for drinking water applications and water treatment systems Polypropylene (PP) mountable without tools fast, repeated disconnection possible very good flow propertiesThe product range is not suitable for compressed air, explosive gases, petroleum or other liquids as well as in heating systems or similar areas of application.

The John Guest push-fit elbow connector in 1/4" is the preferred choice for connecting water filter systems and reverse osmosis units. As the standard size in most filtration setups, it ensures a perfect fit and an effortless installation. No tools are required, making it quick and convenient to use.Thanks to the trusted push-fit technology by John Guest, the connector provides a secure and leak-proof connection. It keeps water lines sealed even under higher pressure, making it ideal not only for water filters but also for various applications where clean water is essential.Manufactured from food-grade, durable materials, this connector is designed to last and maintain hygienic conditions. As a genuine John Guest spare part, it delivers the quality and reliability you need for your water system. Perfect for anyone who values safety, simplicity and long-term performance.Key Benefits:Compatible with standard 1/4" water filters and RO systemsQuick and tool-free installationFood-grade and durable materialGenuine John Guest qualityLeak-proof even under higher pressureThe product series is not suitable for use in compressed air and vacuum areas.

The PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties: for drinking water applications and water treatment systems Polypropylene (PP) mountable without tools fast, repeated disconnection possible very good flow propertiesThe product range is not suitable for compressed air, explosive gases, petroleum or other liquids as well as in heating systems or similar areas of application.

The PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties: for drinking water applications and water treatment systems Polypropylene (PP) mountable without tools fast, repeated disconnection possible very good flow propertiesThe product range is not suitable for compressed air, explosive gases, petroleum or other liquids as well as in heating systems or similar areas of application.

The PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties: for drinking water applications and water treatment systems Polypropylene (PP) mountable without tools fast, repeated disconnection possible very good flow propertiesThe product range is not suitable for compressed air, explosive gases, petroleum or other liquids as well as in heating systems or similar areas of application.

The CI range is manufactured from white acetal copolymer (POM) and fitted with food grade EPDM O-rings. They are used specifically in water treatment, drinking water and beverage applications. They are also suitable for other liquids and are recommended in the given technical specification for alternating cold and hot water applications.Properties:simple and quick installation "right first time"ideal for compressed air and liquidsmountable without toolsfast, multiple disconnection possiblevery good flow propertiesThe product series is not suitable for use in compressed air and vacuum areas.

The PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties: for drinking water applications and water treatment systems Polypropylene (PP) mountable without tools fast, repeated disconnection possible very good flow propertiesThe product range is not suitable for compressed air, explosive gases, petroleum or other liquids as well as in heating systems or similar areas of application.

The CI range is manufactured from white acetal copolymer (POM) and fitted with food grade EPDM O-rings. They are used specifically in water treatment, drinking water and beverage applications. They are also suitable for other liquids and are recommended in the given technical specification for alternating cold and hot water applications.Properties:simple and quick installation "right first time"ideal for compressed air and liquidsmountable without toolsfast, multiple disconnection possiblevery good flow propertiesThe product series is not suitable for use in compressed air and vacuum areas.

Suitable for use with water and food: Products are made of safe, non-toxic materials. Meets the requirements of FDA, WRAS, ANSI/NSF-51, 61, ACS, KTW and DVGW-W270. Our products are widely used in water treatment, the food/beverage industry and pneumatic systems. Function and Quality: Enables quick and convenient installation - saving time and cost. Our ISO9001, 14001 registered quality system ensures our customers receive the highest level of product quality. Maintenance is fast, thanks to easy disassembly. Applications:Beyond water and food applications, our products can be used with air, gases, vacuum and liquids. All connections can be assembled and disassembled multiple times. A wide range of sizes covers a wide range of applications. Material:Grey acetal copolymer

The CI range is manufactured from white acetal copolymer (POM) and fitted with food grade EPDM O-rings. They are used specifically in water treatment, drinking water and beverage applications. They are also suitable for other liquids and are recommended in the given technical specification for alternating cold and hot water applications.Properties:simple and quick installation "right first time"ideal for compressed air and liquidsmountable without toolsfast, multiple disconnection possiblevery good flow propertiesThe product series is not suitable for use in compressed air and vacuum areas.

The PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties: for drinking water applications and water treatment systems Polypropylene (PP) mountable without tools fast, repeated disconnection possible very good flow propertiesThe product range is not suitable for compressed air, explosive gases, petroleum or other liquids as well as in heating systems or similar areas of application.

The CI range is manufactured from white acetal copolymer (POM) and fitted with food grade EPDM O-rings. They are used specifically in water treatment, drinking water and beverage applications. They are also suitable for other liquids and are recommended in the given technical specification for alternating cold and hot water applications.Properties:simple and quick installation "right first time"ideal for compressed air and liquidsmountable without toolsfast, multiple disconnection possiblevery good flow propertiesThe product series is not suitable for use in compressed air and vacuum areas.

The 3/8" plastic tube PE-12-EI-0500F-G in green is a high-quality tube with a bending radius of 32 mm and an inner diameter of 6.3 mm. It is ideal for use in drinking water systems as it meets all relevant approvals according to DVGW worksheet W270, KTW, NSF, and WRAS. This ensures compliance with the stringent requirements of DIN 2001, providing a reliable and safe solution for water installations. The green PE tube offers excellent flexibility and durability, making it perfect for demanding applications in water technology.

John Guest polyethylene hose/pipe, food grade, 3/8", 9.5x6.3mm, 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, 3/8", 9.5 x 6.3 mm, colour blue, 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 yellow, 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", 6.35x4.3mm, 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 rubber approved for drinking water applications.They are ideally suited for closing connectors with a 1/4" tube OD watertight.
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