Water Heater:

https://www.amazon.com/TANKLESS-HEATE...

3 Compartment Faucet:

https://www.amazon.com/gp/aw/d/B01MT6...

1/2” Nipple:

https://www.acehardware.com/departmen...

Hole Saw Set:

https://www.harborfreight.com/1-in-2-...

2 1/4” Hole Saw:

https://www.homedepot.com/p/Milwaukee...

3 5/8” Hole Saw:

https://www.homedepot.com/p/Milwaukee...

Fresh Water Fill Cap:

https://www.amazon.com/gp/aw/d/B0735H...

Gate Valve:

https://www.amazon.com/gp/aw/d/B00B95...

Swivel Drain:

https://www.amazon.com/your-orders/po...