Engineered for exceptional performance in cable placement applications, this duct seal effectively safeguards cables from air and moisture ingress. Manufactured by GMP Tools, the 1.25-inch duct seal ensures a tight and reliable seal, making it an essential accessory for those using cable blowers and proofing kits. With part number 89042, this single unit offers durability and reliability that professionals can trust in diverse conditions, enhancing overall operational efficiency.