| Migratory | 10fr | 8fr |
| Lids complete | $26.35 | $26.15 |
| Rims only | $7.80 | $7.80 |
| Metal covers | $10.80 | $10.70 |
| Telescopic | 10fr | 8fr |
| Lids complete | $26.90 | $26.70 |
| Rims only | $8.20 | $8.20 |
| Metal covers | $11.00 | $10.90 |
Ventilation Grids fits 25.4 mm (1") hole
| .50 cents each | $3.60 for 10 | $29.90 for 100 |