Aqualisa Vitalise Pressure Relief Device Membrane — 910134
The Aqualisa 910134 is an authentic replacement pressure relief device (PRD) internal rubber membrane engineered specifically for the Vitalise electric shower series. Regrettably, this individual factory spare component has been **officially discontinued by Aqualisa, is completely out of production, and has no later or direct modern alternative model available**.
Identification Guide:
MPN: 910134 | SKU / FTB: FTB6553 | Range Compatibility: Aqualisa Vitalise Electric Showers | Component Type: PRD Elastomer Diaphragm
Product Status Details
- Production Halted: The 910134 PRD internal rubber disc is no longer manufactured or supplied by Aqualisa.
- No Later Alternative: No current production electric shower diaphragm or revised PRD sub-assembly retrofits to match this older casing footprint.
Important Technical Note
This rubber membrane acts as the critical safety blow-out seal designed to rupture and divert high-pressure water if the shower head becomes severely blocked with limescale. Because there is no direct replacement part in production to safely secure these older heating tanks, we recommend handling remaining operational units with extreme care.



