Sling Rail Spreader Bar End Cap-Black

Sling Rail Spreader Bar End Cap - Fits in the end of a spreader bar 3/8″ Inside Diameter – Black
SKU: PP- 30-300B

This is a black 3/8" inch insert that fits inside a 3/8" inch inside diameter metal bar. These bars are used to hold the sling rails apart. They have this piece as trim to seal the tubing and to not allow water access. Water can freeze distorting the metal and causing structural damage.