Barrel Nipples
| GSBN015 | 15mm Gal Steel Barrel Nipple |
| GSBN020 | 20mm Gal Steel Barrel Nipple |
| GSBN025 | 25mm Gal Steel Barrel Nipple |
| GSBN032 | 32mm Gal Steel Barrel Nipple |
| GSBN040 | 40mm Gal Steel Barrel Nipple |
| GSBN050 | 50mm Gal Steel Barrel Nipple |
| GSBN065 | 65mm Gal Steel Barrel Nipple |
| GSBN080 | 80mm Gal Steel Barrel Nipple |
| GSBN100 | 100mm Gal Steel Barrel Nipple |