The Octosub Ballast Corrector is designed for wooden spearguns. The ballast kits have been developed to give you additional weight without making your speargun negative in the water.
The small ballast kit is designed for 1-2 band spearguns. The large ballast kit is designed for 3-5 band spearguns. The Euro Speargun fits 29.5 mm barrels.
1-2 bands (small kit)
3-5 bands (large kit)
Can be used separately
All ballast are 1'' tall or 25mm
Euro Gun fits 29.5mm barrel (Rob Allen, Pathos, JBL Reaper)