Mods for b1.7.3
2 mods match your filters.
Vent Blockby PiterGroot
A small BTA mod that adds a vent block for mob/item transportation.
Fabric
b1.7.3
The Flopper Modby Vivian
Inspired by the Flopper block from Minecraft 2.0, this mod adds dispenser-like blocks that, when activated with redstone, will convert and shoot out any and all things put into it into fish!
ForgeModLoader
b1.7.3