This is an early set of parts compatible with the ZR-130E and 180E. Zensui Aquarium Cooler, Initial Parts Set (ZR-130E, 180E, Common to 180E), Compatible Models: ZR-130E, 180E Features: This is an initial part set for Zensui ZR-130E, 180E. Recommended to replace it when it is damaged or keep it as a spare one. Set Contents: L socket x 2, 0.6 - 0.7 inch (16 - 19 mm) hose band x 2, rubber gasket x 4, fuse x 1. Specifications: Compatible hose diameter: Inner diameter: 0.6 inch (16 mm), 0.7 inch (19 mm).