What Size Water Fittings Do I Need for the Girard Tankless Water Heater # GI65VR?
Updated 08/26/2026 | Published 08/20/2026
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Question:
What size and type are the water fittings?
asked by: Alfred M
Expert Reply:
Hello Alfred,
After 6 years of ordering, thanks for finally finding a reason to write in!
The Girard RV Tankless Water Heater # GI65VR uses 1/2" NPT fittings for both the hot and cold water connections.
If you have 1/2" PEX water lines, you will want (2) LaSalle Bristol PEX Female Adapter Fittings # LSB74TR, one for the hot and one for the cold. These have a 1/2" female swivel connection on one end and a 1/2" PEX barb on the other, making it nice and easy to connect your PEX lines to the water heater.
What kind of water heater are you replacing?
Product Page this Question was Asked From
Girard RV Tankless Water Heater - Propane - 42,000 Btu
- RV Water Heater
- Tankless Water Heater
- Propane
- 40001 - 55000 Btu
- 12 Volts
- 13-3/4L x 12-1/2W x 12-1/2D Inch
- White Door
- Girard
more information >
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Alfred M.
8/26/2026
Cool. Most of the questions I would have had have already been asked by others and answered by you. I'm glad you track this stuff.