Hot Tub Plumbing Pipe Size Guide
The following images are of actual pipe and should appear as actual size on your computer screen. The dimensions are as accurate as possible to enable you to perfectly match up your hot tub pipe.
The size dimension of the pipe relates to the internal dimension (ID) of the pipe.
*Please note Rigid hot tub pipe has not been included because it is very similar to the flexible pipe.
We mainly sell imperial PVC pipe in 'Flexible' and 'Rigid', but 'Rigid' metric is also available.
Vinyl Flexi Pipe | |
 | 2 5/8” Flexi Pipe Dimensions: External Width: 68mm Internal Width: 60mm Wall Thickness: 4.5mm Colour: Red or Blue Usually seen on Arctic Spas |
 | 2” Flexi Pipe Dimensions: External Width: 60mm Internal Width: 52mm Wall Thickness: 4mm Colour: White |
 | 1.5” Flexi Pipe Dimensions: External Width: 48.5mm Internal Width: 41.5mm Wall Thickness: 4mm Colour: White |
 | 1” Flexi Pipe Dimensions: External Width: 33mm Internal Width: 25mm Wall Thickness: 4mm Colour: White |
 | 3/4” Flexi Pipe Dimensions: External Width: 26mm Internal Width: 20mm Wall Thickness: 3mm Colour: White |
 | 1/2” Flexi Pipe Dimensions: External Width: 22mm Internal Width: 18mm Wall Thickness: 2mm Colour: White |
PVC Pipe |
 | 3/4” PVC Pipe (water Pipe) Dimensions: External Width: 25mm Internal Width: 19mm Wall Thickness: 3mm Colour: Clear |
 | 5/8” PVC Pipe (Air Pipe) Dimensions: External Width: 12mm Internal Width: 9mm Wall Thickness: 1.5mm Colour: Clear |
 | 3/8” PVC Pipe (Ozone Pipe) Dimensions: External Width: 9mm Internal Width: 6mm Wall Thickness: 1.5mm Colour: Clear |
This article was written by Hot Tub Help Ltd - Hot Tub Parts Cornwall