3/8" Push Fit to 3/4" BSP Tap Connection


3/8" push fit to 3/4" BSP Tap Connection, which is compatible with the John Guest C1321216FS fitting

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£2.95 inc-VAT


This is a 3/8" push fit to 3/4" BSP thread tap connection with flat end fittings. This fitting is most commonly used for connecting Reverse Osmosis units, fridge filters, or any other appliance where a 3/4" tap connection is needed.

It is compatible with the John Guest part number: C1321216FS, and can be used with semirigid plastic (polypropylene, polyethylene, nylon) and soft metal (brass, copper, mild steel) tubing. To connect flexible tubing such as Tygon® or silicone, order soft tube supports.

Made from safe, non-toxic materials that meet the requirements of WRAS, ANSI / NSF-51 & 61, and SK Zert! The fitting is supplied to us by a well known company, and are widely used in water purification, food and beverage, and pneumatic systems.

This item is suitable for use with hot or cold water applications. Please check the technical tab for a list of maximum operating pressures and temperatures.

There is an anomaly with regards to the actual BSP thread size, which can be terribly confusing. There are two different sizes used in water connections in UK.

As a guideline 
•If the diameter of your threaded fitting is in excess of 1” (25mm), then you will require a ¾” BSP fitting 
•If the diameter is ¾” (19mm), then you will require a ½” connection

A regular complaint is that we send out a 1” connection, not a ¾” connection. DM Fit do not make 1” BSP female thread fittings

Please visit the Fittings & Spares category of our website to see our full range of fittings. 

Technical Information

  • Working Pressure and Temperature Range
  • 1° (34 °F) - Max Pressure….. 11 Bar (170 psi)
  • 20° (68 °F) - Max Pressure….. 11 Bar (170 psi)
  • 65° (150 °F) - Max Pressure..... 7 Bar (100 psi)
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