| Migratory | 10fr | 8fr |
| Lids complete | $23.90 | $23.70 |
| Rims only | $7.05 | $7.05 |
| Metal covers | $9.80 | $9.70 |
| Telescopic | 10fr | 8fr |
| Lids complete | $24.40 | $24.20 |
| Rims only | $7.45 | $7.45 |
| Metal covers | $10.00 | $9.90 |
Ventilation Grids fits 25.4 mm (1") hole
| .40 cents each | $3.10 for 10 | $26.50 for 100 |