Atwood (91857 1/2" Drain Plug Kit, (Pack of 2)

Atwood 91857 12" Drain Plug Kit is a pack of 2 drain plugs that fit Atwood water heaters. The plugs are 1/2" NPT and made of plastic. The product is suitable for RVs but not for boats. The sacrificial diode is not needed for Atwood water heaters. Some customers found that the plugs did not fit their tanks properly and only screwed in a quarter of the way. One customer recommended purchasing a flushing wand to clean the tank instead of a plug. However, there was also a positive review from a customer who had tried various "good quality" plugs that leaked and eventually replaced them with these. There was also feedback that the product was expensive for standard 1/2" plugs that were easily available at hardware stores for a fraction of the price. Another customer pointed out that the product is made of PVC not nylon, which might break down due to prolonged exposure to high temperatures.