Raritan 78-1203BW Inlet Valve Body — PHII Marine Toilet
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You have 30 days to request a return. All sale items are final sale.
Replacement Inlet Valve Body for PHII Marine Toilets
The Raritan 78-1203BW is the OEM replacement inlet valve body for the PHII series marine toilet. The inlet valve controls the flow of raw water into the toilet bowl during the flush cycle — when this component fails, the toilet either won't flush properly or water won't stop running. Replacing the valve body restores normal operation without requiring a full head replacement.
This is a direct-fit replacement part designed specifically for PHII heads. Using the correct OEM part ensures proper sealing, correct flow rate, and long-term reliability in a marine environment.
Key Features
- OEM replacement inlet valve body for PHII marine toilets
- Controls raw water intake during the flush cycle
- Direct-fit replacement — no modification required
- Designed for the marine environment with corrosion-resistant materials
Compatible With
- Raritan PHII marine toilet series
Parts Desk Insights
Best Use Case: This is the part to reach for when a customer reports that their PHII toilet won't flush, flushes weakly, or won't stop running water. The inlet valve body is one of the most common wear items on the PHII head and is almost always the culprit when water flow issues arise. Confirm the customer has a PHII (not a PHI or PHIII) before ordering — the valve bodies are not interchangeable between generations.
Installation Note: Shut off the raw water seacock before replacing the valve body. The job is straightforward and can typically be done without removing the toilet from the boat. Recommend the customer inspect the inlet hose and seacock while the system is open.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.