Description
Pentair / Sta-Rite Heater Connector Tube Kit (Includes O-Ring) | 77707-0017
The Pentair 77707-0017 is a replacement connector tube kit used in the water system of select Pentair and Sta-Rite gas pool/spa heaters. This tube and seal help maintain a leak-free internal water path so the heater can circulate water properly and heat consistently.
What’s Included
- (1) Connector tube
- (1) O-ring (seal for the tube connection)
Compatibility
- Fits: Pentair MasterTemp heater water system applications (where 77707-0017 is specified)
- Fits: Sta-Rite Max-E-Therm heater water system applications (where 77707-0017 is specified)
- Tip: Confirm by your heater model/BTU size and parts diagram. Heater water-system components can vary by revision.
What This Part Does
- Provides an internal water connection path inside the heater water system
- Uses the included O-ring to help prevent drips and seepage at the connection point
- Helps restore normal operation when an older tube is cracked, deformed, or leaking at the seal
Common Reasons to Replace
- Water seepage or staining inside the heater cabinet near the water system connections
- O-ring is flattened, cracked, swollen, or won’t seal after disassembly/reassembly
- Tube is damaged during service or shows signs of heat/age-related deformation
- Heater is being rebuilt and you want to refresh wear seals in the water system
Installation Notes
- Turn off power and gas supply to the heater and allow the unit to cool before servicing.
- Shut valves, relieve pressure, and drain the heater water circuit as needed for your setup.
- Clean the sealing surfaces before installing the new tube and O-ring.
- Lightly lubricate the O-ring with a silicone-based lubricant (never petroleum-based) and seat it evenly (no twists).
- After reassembly, restore flow and check carefully for leaks before returning the heater to normal operation.
- Heater service is best handled by a qualified technician.
Related Products
- Search Aqua Pool Supply for 77707-0017
- MasterTemp water system parts
- Max-E-Therm water system parts
- MasterTemp/Max-E-Therm manifold kit (77707-0016)
- Thermal regulator kit (77707-0010)
- Water pressure switch (42001-0060S)
- Silicone lubricant for O-rings and seals
Maintenance Tips
- Maintain proper water chemistry to reduce corrosion and premature heater water-system wear.
- Keep flow in range (clean baskets and filter). Low flow can overheat internal components and shorten seal life.
- When servicing the water system, replace disturbed O-rings rather than reusing flattened seals.
- Winterize correctly in freeze-prone areas—freeze expansion can crack water-system components.
