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John Guest Tap Adaptors


Our John Guest Tap Adaptors allow for the reliable and convenient conversion of a male BSP thread to common push fit tubing sizes (3/8” or 1/4″). Manufactured from WRAS approved materials and certified safe for drinking water applications, these adaptors are commonly used to connect ‘inline’ style water filters to kitchen taps and water coolers. Available to suit male 3/4″ BSP thread sizes, with smaller 1/2″ BSP thread sizes available upon request.

Why Choose Our John Guest Tap Adaptors?

  • WRAS approved materials for safe use with drinking water
  • Manufactured by industry leading John Guest
  • Available to suit either 3/8” or 1/4″ tubing
  • Tested leak proof with built in seals

Need help with our John Guest Tap Adaptors? Give us a call on 01622 933 853


These John Guest Tap Adaptors are manufactured and assembled in the UK by John Guest using an Acetal copolymer. Suitable for use with potable drinking water applications, food production, pneumatics and inert gases. Their metal-free construction offers excellent chemical compatibility which means they can also be used in pure water applications, such as for DI and RO water.

Please note we are able to supply a range of John Guest adaptors and connectors not listed on our website. For customers looking for a particular adaptor do not hesitate to contact a member of our team.

Key Product Information

  • Manufactured in the UK from an Acetal copolymer
  • Certified for use with potable water applications
  • Excellent chemical compatibility
  • Genuine John Guest adaptors

Compatible Products

Need help with our John Guest Tap Adaptors? Give us a call on 01622 933 853


Suitable For

General Plumbing, Drinking Water, Water Coolers & Fridges, Home & Domestic, Boats & Caravans


1/4″ Push Fit × 3/4″ BSP Female (CI320816S)
3/8″ Push Fit × 3/4″ BSP Female (CI321216FS)


Acetal Copolymer

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