FeaturesExclusive 2 in expansion fitting with an 8 in travel distanceExclusive molded in mid-point indicator on the piston2-piece molded design with lubricated seals for easier movement for the life of the productRidges on the fitting for easier installation, 2 in through 6 in onlyMale terminal adapter end designTwo O-rings to prevent leakageCan be installed vertically or horizontally3-1/2 in female socket end10.31 to 18.31 in opening14.13 in L mid-point