Spa Components - Spa, Tub, Bath Heater Union, Tailpiece 2in MBT x 1.5in SKT, w/ O-ring

Spa, hot tub and whirlpool bath heaters with 2"" heater tubes use these 2"" MBT tailpiece connector with O-ring to connect a 2"" spa heater tube to 1.5"" PVC pipe. 2"" tailpiece threads are 2"" MBT, which actually measures 3"" outside diameter to mate with standard spa heater 2"" union nuts, such as the HU-2FBTSN. Opposite end is 1.5"" Slip Socket for PVC pipe connection. Universal design fits many 2"" spa, tub and bath heaters used by spa control and spa manufacturers. Replaces Balboa, Gecko, Waterway and more.