Description
John Guest (JG) WaterMark Brass Adaptor – 12mm Push-On to 3/8″ Female BSP
This is a brass John Guest Watermark fitting, 12mm push-on to 3/8 inch female BSP adapter. It can be used on the standard John Guest Speedfit tubing (LLDPE) and the Watermark 12mm tubing (BPEX).
Ensure you use the matching pipe inserts with each style of tubing, i.e. do not use Watermark inserts with standard John Guest Speedfit tubing (LLDPE).
- Suitable for use on standard Speedfit 12 mm tubing (LLDPE) and Watermark 12 mm tubing (BPEX)
- Brass fitting
- 3/8 inch female BSP fitting
- Suits 12 mm OD plastic pipe
- Watermark certified for use on hot water over 90 °C
- Suitable for use on LLDPE and BPEX tubing (12 mm)
- Approved fitting for caravan manufacturing




