| ITEM# | DIAMETER | DEPTH | ROUGH DEPTH (STRETCHED) |
| R12N (NMR-12N) | 12.5" (32cm) | 9" (24cm) | 13" (34cm) |
| R15N (NMR-15N) | 15" (38cm) | 11" (27.7cm) | 15" (39cm) |
| R19 (NMR-19) | 19" (48cm) | 11" (27.5cm) | 16" (41cm) |
| R19N (NMR-19N) | 19" (48cm) | 11" (28.5cm) | 16" (40cm) |
| R19NM (NMR-19NM) | 19" (48cm) | 18" (45cm) | 25" (63cm) |
| R19ND (NMR-19ND) | 19" (48cm) | 24" (60cm) | 33" (84cm) |
| R22 (NMR-22) | 22" (56cm) | 11" (28cm) | 18" (45cm) |
| R24N (NMR-24N) | 24" (61cm) | 13" (32.6cm) | 18" (46cm) |
| R28 (NMR-28) | 28" (71cm) | 24" (60cm) | 38" (96cm) |