Sizes available： 

 
Model No. Dimension（mm）
D1 D2 L1 L2
H-211-3/8” R3/8 R3/8 12 12
H-211-1/2” G1/2 G1/2 12.5 12.5
H-211-3/4” G3/4 G3/4 14 14
H-211-1” G1 G1 17 17
H-211-1-1/4” G1-1/4 G1-1/4 18 18
H-211-1-1/2” G1-1/2 G1-1/2 20 20
H-211-2” G2 G2 22 22
Sizes of our items are updated in no time, please let us know if you need other sizes.