Louet warp tension regulator. In brand new condition, never been used. The warp tension regulator ( a tension box) is used with the Sectional Warp Beam and is adjustable to fit any Louet floor loom back beam. The tension is adjustable for uniform tension on all warp ends as they are wound from the spool rack to the loom. Online this Louet Tension regulator sells for over $300. Bellingham WA/Skagit County. $175. Email if interested.