Pipe Saddle 1/8" for 20mm pipe 
PVC pipe-compatible saddles for attachment of 1/8' gas thread fittings, such as our Water Nipple Rabbit or Poultry. Drill a 12mm hole in PVC pipe as required. Boss on back of saddle will locate in hole. Glue and press fit. Saddle length 40mm. Dimension in brackets is actual outside diameter of required pipe.