Navien Adapters
Get genuine Navien factory OEM Adapters for your Navien tankless water heater. All Navien Adapters are brand new in the original factory packaging and are guaranteed to fit and function properly. We have fast FREE SHIPPING on all orders over $99 and ship all orders within 1 business day.

Navien 20000355B Adapter
List: $13.23 / ea
$9.95 / ea
In Stock ✔

Navien 20007182D Water Pipe Adapter - B
List: $6.58 / ea
$4.95 / ea
In Stock ✔

Navien 20012877A Primary Inlet Adapter
List: $18.55 / ea
$13.95 / ea
In Stock ✔

Navien 20023809A Gas Inlet Adapter
List: $6.58 / ea
$4.95 / ea
In Stock ✔

Navien 20025959A Outlet Adapter
List: $19.88 / ea
$14.95 / ea
In Stock ✔

Navien 20025960A Connection Adapter
List: $9.24 / ea
$6.95 / ea
In Stock ✔

Navien 20025962A Water Adjustment Valve Inlet Adapter
List: $6.58 / ea
$4.95 / ea
In Stock ✔

Navien 20026780A Water Pipe Adapter - A
List: $6.58 / ea
$4.95 / ea
In Stock ✔

Navien 20026930A Supply Pipe Adapter B
List: $13.23 / ea
$9.95 / ea
In Stock ✔

Navien 20027748A Gas Inlet Adapter
List: $6.58 / ea
$4.95 / ea
In Stock ✔
Navien 30003411B Bypass Tee Adapter
List: $10.57 / ea
$7.95 / ea
In Stock ✔

Navien 30003651B DHW Supply Adapter
List: $14.56 / ea
$10.95 / ea
In Stock ✔