The Hongshang HSEC 115 Heatshrink End Cap has a nominal inside diameter of 20 mm before shrinkage. This product provides effective cable insulation and protection as part of a heatshrink caps or sleeves set. It is typically used in electrical applications to seal cable ends and prevent moisture ingress. https://elecena.pl/product/28201813/hongshang-hsec-115-heatshrink-end-cap-20mm-dia-1pc 2025-04-05 https://elecena.pl/product/28201813/hongshang-hsec-115-heatshrink-end-cap-20mm-dia-1pc 2025-07-19