Difference Zodiac MKI vs. MKII

[LucasHartong]

Hi there. I've seen an old Zodiac MKI GT. What would be the difference with an MKII (C)GT? Is it only in length? What would be the material for the tubes of an 1986 MKI? I know Zodiac changed to Strongan/PVC around 1985. Thanks for any info!

[office888]

MK1 = 3.5 meters
MK2C = 3.8 meters
MK2 = 4.2 meters
MK3 = 4.7 meters

HP rating and tube diameter usually change as well.

It could be either PVC or Hypalon. Or it could be both! There were hybrid years...hypalon tubes with PVC floors, or hypalon tubes with PVC internal baffles.

[LucasHartong]

OK, thanks. Will have to inspect the tubes closer then