On a planet where most combat takes place on dry land, the Water Viper has a very niche market. However, the SRA has made significant purchases of the design to strengthen their swamp and jungle fighting units. The Water Viper Silent Running (SR) further includes an ECM pod and turbines retrofitted to reduce cavitation.
The Water Viper Two Pack includes two multi-part pewter models in 1/144th scale with plastic hex bases. One is in a standing and one in a running pose. The rules for them and many other models can be found in the Force Compendium, which is also a free download on drivethrurpg.com.
Note: Model supplied unassembled and unpainted. Contents may vary from those pictured. Decals not included.