Backed by a 1-year warranty

Guards against theft and provides clear evidence of tampering

The filler-free formula reduces your pool's pH and eradicates microorganisms without leaving residue behind

Each Super Workbook is a $39 value for just $18

Appealing Creamy Flavor

8 7⁄8 x 8 1⁄2 x 12" Multi-Depth Corrugated Boxes 4D Backed by a 1-year warrantyMULTIPLE SIZES IN 1 BOX CUT DOWN TO THE SIZE YOU NEEDMinimize UPS and FedEx dimensional weight pricing by eliminating empty box space. Sides are creased at intervals just cut to the creased height needed, fold down and you have a custom size carton. DIMENSIONS: Outside: 9 1 4 x 8 7 8 x 12 5 8" (+ 1 8") All FedEx and all UPS Dimensional Weight: 8 lbs MATERIAL: C flute FEATURES: All boxes open along the length (first dimension). Seams are glued.