![Waterway, Heater O-Ring 2" Heater Union (805-0229) [O-301]](http://bathparts.com/cdn/shop/products/O-301_6b635d72-a9c4-4d13-9736-7a44a8cdef81.jpg?v=1659544607&width=700)
![Waterway, Heater O-Ring 2" Heater Union (805-0229) [O-301]](http://bathparts.com/cdn/shop/products/O-301_6b635d72-a9c4-4d13-9736-7a44a8cdef81_1024x.jpg?v=1659544607)
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| Heater Union Part Type | O-Ring |
| Part Type | O-Ring |
| Cross Section | 1/8" |
| Inside Diameter | 2-3/8"id |