Metal Half Cartridges

The John Guest Group has a long established reputation as a world leading manufacturer of push-in fittings, tube and other fluid control products. A reputation built on producing consistently high quality products with an ongoing commitment to value engineering and product development.

A commitment to quality is at the heart of the John Guest philosophy.

The strictest control is maintained by virtue of the fact that design and manufacture is carried out in modern purpose built manufacturing centres in west London and at Maidenhead in Berkshire. Maintaining control over the whole process from initial tool design and tool making through to final assembly an testing ensuring that only products of the highest quality are produced.

Compressed Air


The company believe it is this commitment to quality that has

led to it receiving prestigious awards from many of the world’s

leading testing and approvals organisations. John Guest is a

preferred supplier to many international companies. John Guest

Cartridge Systems are an easy and cost effective way of

incorporating a push in connection into a wide range of original

equipment. Neat and compact, push in connections avoid the

need for threaded ports, offer improved product appearance,

easy tube connection and a reduced envelope size. Cartridge

Systems are easy to assemble, need only a low insertion

level but offer a high burst pressure. They are offered with

plastic, brass or stainless steel body for use with a wide

variety of soft metal or plastic housing materials. The

systems are based on technology used in a wide range

of industrial applications such as, Blown Fibre - Automotive

- Drinks Dispense - Plumbing & Heating and

Metal Half Cartridges

1/4” and 3/8” size also available with red, blue or grey collet, (suffix R, B or N).

• For Drinks Dispense and Potable Water Applications

• Inch and metric sizes • For a wide variety of metal housings

• Brass or stainless steel body

John Guest Half Cartridges with metal body are designed to provide a simple cost effective way of securing tubes into taps, manifolds, flow direction splitters and many other types of components,

which can be produced in a wide variety of materials. When connections need to be installed into plastic products we recommend our new Plastic Half Cartridge shown on pages 03 to 04. Half Cartridges are supplied with one ‘O’ ring as standard. In some instances it may be desirable to consider additional

sealing and if space permits, the addition of a second ‘O’ ring will be worth considering.