PART NO. THREAD O-RING DIMENSIONS E F E A L S1 5GT-02 G1/8"X28 Rc1/8"X28 7.65X1.78 9.5 26 14 5GT-04 G1/4"X19 Rc1/4"X19 10.77X2.62 10 32 19 5GT-06 G3/8"X19 Rc3/8"X19 13.94X2.62 11.5 37 22 5GT-08-06 G1/2"X14 Rc3/8"X19 17.12X2.62 14 38 27 5GT-08 G1/2"X14 Rc1/2"X14 17.12X2.62 14 46 27 5GT-12 G3/4"X14 Rc3/4"X14 23.47X2.62 15.5 48 36 5GT-16 G1"X11 Rc1"X11 29.74X3.53 18 52 41 5GT-20 G1.1/4"X11 Rc1.1/4"X11 37.69X3.53 20 57 50 5GT-24 G1.1/2"X11 Rc1.1/2"X11 44.04X3.53 21.5 59 55