Carlon / Thomas & Betts - Carlon S289LLN 3" x 3" PVC Intermediate Spacer

3 Inches x 3 Inches Snap-Loc Styrene intermediate Spacer Features: Locking keyways incorporated into intermediate spacers eliminate the need for costly top spacers in each size.; 1 in. and 2 in. Snap-Loc reducers enable fixturing of 1 in. or 2 in. conduit inside larger spacers.; Snap-Loc rebar holder provides stabilization on large banks of spacers.; Snap-Loc Spacers provide a side dovetail rail-and-groove design enabling side-by-side interchangeability of conduit spacer sizes while maintaining horizontal stability.; The locking keyways provide for the use of a beaded strap that secures the top section of the conduit. - Application: The innovative vertical and horizontal interlocking Snap-Loc design has tapered joining slots with maximum tolerances for easy jobsite assembly.; Non-metallic Snap-Loc Spacers are designed specifically for use with non-metallic duct, with maximum O.D. dimensions as specified in NEMA TC-2, TC-6 and 8, and ASTM F512.; Snap-Loc Duct Spacers provide stability, consistent separation and relieve direct stress for duct materials encased in concrete and direct-buy applications. - Notes: The use of duct spacers for direct burial may result in excessive point deflections unless proper design engineering is applied, such as the proper compaction of the appropriate backfill material.