Connectors
| Model No. | Description | Pipe Thd. |
| Z-PN-4 | Pipe Nipples | 1/4 inch |
| Z-PN-6 | Pipe Nipples | 3/8 inch |
| Z-PN-8 | Pipe Nipples | 1/2 inch |
| Z-PN-12 | Pipe Nipples | 3/4 inch |
| Z-PN-16 | Pipe Nipples | 1 inch |
| Z-PN-20 | Pipe Nipples | 1 1/4 inch |
| Z-PN-24 | Pipe Nipples | 1 1/2 inch |