Sika PRO Select 3/4" x 20' Closed Cell Backer Rod

Mind the gap! Stop pouring money down deep cracks and joints with the Sika PRO Select Closed Cell Backer Rod. Designed to fill large gaps before you apply sealant, this handy foam rod saves you dynamic amounts of caulk while ensuring a long-lasting, flexible seal. Don't let your sealant sink—fill it fast, seal it right, and keep your budget airtight!