New style manifolds comes with gasket-side made of bronze, rather than the older plastic types that warped & leaked. Suits all Hurlcon / Astralpool MX series gas heaters. Top plastic part also available. When replacing, make sure rust is removed on heat exchanger plate. 

For larger gaps in the heat exchanger steel plate, we recommend filling and sealing with: Ferropre. 

When replacing the manifold, you should also buy the Tube Seal Kit. (Comes with 9x new tube seal gaskets which were originally red or black)

Comes with all parts in diagram below as highlighted. 

Suits:
Hurlcon / Astralpool MX125, MX150, MX200, MX250, MX300, MX350, MX400.

 Options:
- Top Plastic/Noryl 71001 & Middle Gasket
- Complete Brass / Noryl manifold here: 71028. 
- Manifold Red-O-ring Tube Seal Gaskets