Features: The bathtub Heater Split Nut Fitting delivers universals, Hydroquip, and most 15" bathtub heaters, featuring pre installed screws/washer for leak proof heater tube connection. Precisions engineered ABS construction ensures durability with measured 2.08" inner/2.87" outer diameters, including O rings compatibility for multiple bathtub brands' heating systems. Designed for hot tubs owners and pool technicians requiring reliability replacement parts for heater flange assemblies in residential/commercial bathtub maintenance. Essential for repairing or upgrading 2 inch heating pipe joints in backyard bathtub, ensuring stable water circulation during hydrotherapy. The innovative split nut simplifies heater component replacements without full disassembly, maintaining structural integrity in pressurized hot water environments. Specifications: Dimension:7.78cm/3.06in 7.62cm/3in Component:ABS Package Includes: 2pcs bathtub Heater Split Nut Fitting note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.