1/2"X 5-1/2" STD BLK NIPPLE
1/2"X 4-1/2" STD BLK NIPPLE
1/2"X 3-1/2" STD BLK NIPPLE
1/2"X 2-1/2" STD BLK NIPPLE
1/2"X 1-1/2" STD BLK NIPPLE