CSM-91-INS

Insulation Systems

  • Available in sizes 2 1/2 to 4 in
  • Meets ASHRAE standards
  • Inside consists of mineral fiberglass insulation
  • Removable PVC jacket

Select options below to identify the UPC, Order Code, and Repair Kit for a specific CSM-91-INS

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA