R20/A 5 1/8
R20/A 6 1/4
R20/A 12 1/4
R20/A 12 3/8
R20/A 12 1/2
R21 4
R21 5
R21 6
R21 8
RL21 10
RL21 12
QUICK-FIT COUPLING MALE 1/4