| Nominal Size | 21 x 18 in |
| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | Royal Building Products | PLA L2121-18 | TEE SAD DR35 GSK SWR GG L212118 |
| | Royal Building Products | PLA L2321-18 | WYE SAD DR35 GSK SWR GG L232118 |
| | Royal Building Products | PLA K6021-18 | COUP STP PROFILE HH K602118 |
| | Royal Building Products | PLA K60521-18 | COUP INCR PROFILE HG K6052118 |
| | Royal Building Products | PLA H2121-18 | TEE SAD SDR26 GSK SWR GG H212118 |
| | Royal Building Products | PLA H2321-18 | WYE SAD DR26 GSK SWR W/ CLAMPS H232118 |
