Things To Consider

Cross-Reference Alternatives

John Guest MPNs cross individual references to the equivalent Alpha Fittings, Dayton and Dixon model numbers for tube fittings and valves. So, if you're looking for a competitor item that is either out of stock or obsolete, chances are Raptor Supplies has the equivalent John Guest products available.


These John Guest products are available in small to large sizes. They may require careful packaging as some items might get damaged while shipping. Hence, these items are delivered by courier shipment and air freight for minimum downtime.

About John Guest

The John Guest Fittings catalogue includes water supply stops, push-to-connect tube fittings, check and foot valves, connectors and stop valve adapters. Push-fit check valves by John Guest are widely used to facilitate liquid flow in one direction and to prevent backflow of liquid. These Super Speedfit Acetal single check valves are suitable for use with polyethylene, nylon, polyurethane, brass, copper and mild steel tubing. They can withstand a maximum water pressure of 150 psi and can easily operate at temperatures up to 167 degrees Fahrenheit. The company also offers fixed elbows suitable for potable liquids and pure water applications. These 90-degree connectors are ideal for use in tight spaces and feature acetal copolymer construction for maximum durability and corrosion resistance.

Major Trade Names

ProLock Fittings

ProLock Fittings

These fittings are suitable for installation in water softener / conditioner systems. They feature a collet with stainless steel teeth that provides a gripping effect when fully inserted and have an O-ring to provide permanent and leak-proof sealing. These fittings include a cap lock that securely l...

ocks the pipe in place with a simple twist of the cap. This feature eliminates the need for special tools, soldering, clamps or glue to make a secure connection. They are further designed with an audible click and visible alignment arrows, assuring users that a fitting is secure.

Speedfit Fittings

Speedfit Fittings

These fittings create a secure and leak-proof connection between pipes. and feature a unique locking mechanism that ensures a tight connection between pipes. They feature high-quality plastic construction to offer superior durability and EPDM O-rings to create a tight seal by preventing water or oth...

er fluids from leaking out. These Speedfit fittings are suitable for both hot and cold water plumbing applications.

SharkBite PEX Pipes

SharkBite PEX Pipes

These pipes are ideal for industrial and commercial installations for remodelling or repair applications. They are made of polyethylene to offer superior flexibility, chlorine and UV resistance and the ability to withstand freezing temperatures. These cross-linking PEX pipes are available in white, ...

blue, red and white colours in coil / straight length configuration.

Frequently Asked Questions

What is cross-linking PEX tubing?

The PEX tubing undergoes a cross-linking process which enhances the material's properties, making it resistant to heat, pressure and chemical degradation.

How to connect / disconnect a ProLock fitting to a pipe?

  • Cut the pipe using a copper pipe cutter. Remove all burrs and sharp edges.
  • Insert the pipe fully into the fitting.
  • Turn the locking cap clockwise (in 90 degrees) to lock the position. The correct position can be determined by the audible click and the indicator marks.
  • To disconnect, depressurise the system and turn the locking cap quarter turn in an anti-clockwise direction. Now, depress the collet against the fitting and remove the pipe.

What is the use of water supply stops?

Water supply stops, also known as shut-off valves are devices used to control the flow of water. They include a handle that is used to control the flow of water or isolate the supply to a specific zone. These stops are commonly made of acetal, brass or stainless steel.