CAP 2" VALVE 3-WAY AES GRAY MQ 2013+
About This Part
CAP 2" VALVE 3-WAY AES GRAY MQ 2013+ — a genuine Marquis Spa replacement part for spas and hot tubs. Part #350-6346.
This is an authentic Marquis Spa component, stocked and shipped by Sauna Company USA. Order genuine Marquis Spa part #350-6346 online with fast shipping, secure checkout, and expert support from our parts team.
- Manufacturer: Marquis Spa
- Part Number: 350-6346
- Category: Jets & Plumbing › Fittings › Valve Parts
- Availability: Regular Stock
Detailed Description
The Marquis 350-6346 is a genuine replacement 3-way diverter valve cap used on select Marquis Spas. It acts as the top access cover for the 2-inch Tri-Zone diverter valve and helps control the flow and water pressure in your hot tub's plumbing system.
Key Details & Features
- Part Type: 3-Way Diverter Valve Cap/Cover
- Plumbing Size: Designed to fit 2-inch plumbing diverter valves
- Color: Typically features a dark gray finish
- Compatibility: Common on 2013 and newer Marquis Signature and E-Series spa models (Can also act as an alternate or replacement for older, light gray 350-6323 caps or newer 350-6409 caps).
- Ships from the USA
- Secure checkout
- Lowest price guaranteed
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Technical Specifications
| Part Number | 350-6346 |
| Brand | Spa Parts |
| Item Type | Part |
| Category | 350-6346,Fittings,Jets & Plumbing,Marquis Spa,Part #350-6346,Valve Parts |
| Shipping Method | Standard parcel |
| Availability | In Stock |
Contact us to confirm compatibility with your specific model before ordering.
Installation Overview
Pump / valve installation — shut off water supply before starting. Check for drips after every connection.
- Close the water supply valve and drain any residual pressure from the line.
- Disconnect the power/signal wire to the pump or solenoid and cap it safely.
- Unthread the old component using the appropriate wrench; have a towel ready for residual water.
- Apply thread-seal tape to all threaded connections on the new component.
- Thread in the new component hand-tight, then 1–1.5 additional turns with a wrench.
- Reconnect wiring per the wiring diagram; restore water supply slowly.
- Check all joints for leaks; restore power and test operation.
Compatibility & System Requirements
This part is designed for use with:
- Spa Parts Products
Not sure if this fits your system? Contact us with your model number and we'll confirm before you order.
Frequently Asked Questions
Is this a genuine OEM part?
Yes. Sauna Company USA is an authorized dealer for Spa Parts. All parts sold are genuine OEM components sourced directly from the manufacturer or authorized distributor, not aftermarket substitutes.
How do I confirm this fits my model?
Match the part number (SKU) on the product against the parts list in your equipment's owner manual, or locate the data plate on your unit and compare the model number to the compatibility table above. If unsure, contact us with your model number before ordering.
Can I return this part if it doesn't fit?
Parts & accessories are non-returnable once opened — incorrect parts cannot be resold as new. Please confirm compatibility before purchasing. We're happy to help identify the correct part for your system.
How long will shipping take?
Standard parcel orders ship within 1–2 business days. Estimated transit is 2–5 business days depending on your location. Expedited options are available at checkout.
Shipping & Delivery
Standard parcel shipping — ships within 1–2 business days via UPS or FedEx.
- Tracking number emailed when shipped.
- Estimated transit: 2–5 business days depending on destination.
- Expedited shipping options are available at checkout.
- Orders placed before 5pm ET on business days ship the same or next business day.
Questions about your order? Email info@saunacompanyusa.com or use our contact page.
Warranty & Returns Policy
Manufacturer Warranty: This part is covered by Spa Parts's standard manufacturer warranty against defects in materials and workmanship. Warranty duration and terms vary by part type — refer to the documentation included in the package or contact us for details.
Returns: Parts & accessories are non-returnable once ordered. This policy exists because installed or opened components cannot be resold as new. Please verify compatibility thoroughly before purchasing — we're here to help.
Defective items: If your part arrives damaged or defective, contact us within 48 hours of delivery. We will arrange a replacement at no charge with proof of the defect (photos or video).
For warranty claims, visit our Warranty Claims page.