This six piece compression tester kit includes a 380mm high pressure hose with braided stainless steel casing, 14 | 18mm adaptor plus 10 | 12 | 14mm long reach adaptors.The Dti has large, easy to read 2 1/2" dial face with accurate Bourdon tube meter. For petrol engines onlyLarge easy to read 2 1/2" dial face with accurate Bourdon tube meter movement Dual calibrated and colour coded scales Dual 14 /18mm adaptor is fitted to the hose for quick and easy testing of most modern engines