320-6784
320-6784 Marquis Spas® Jet Insert, HK16, Rotory, Stainless/Gray, 4.5″
Original price was: $30.99.$20.99Current price is: $20.99.
DESCRIPTION
SKU: 320-6784
MPN: 320-6784
Manufacturer: Marquis Spas®
Description: Marquis Spa Vector Roto Jet 320-6784 in Stainless steel and gray color. Jet Face measures 4 1/” across the front jet face diameter. This jet is also part of the HK-16 HK16 jet family .Also see the HK16 directional jet MRQ320-6747.
HK designations are old-style Marquis Spa nomenclature – they refer loosely to a family of jet types and are no longer used to identify specific jet HK16 jet roto Need the twin roto jet with 2 rotating nozzles Instead of 320-6784 that one is 320-6748
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320-6784 Marquis Spas Jet Insert – HK16 Rotary 4.5″ Stainless and Gray
The 320-6784 Marquis Spas Jet Insert is a high-quality replacement designed to restore strong rotary jet performance in your spa. Known for its rotating HK16 massage action, this 4.5″ insert delivers a smooth and targeted water stream that enhances comfort and relaxation.
Crafted with a gray backing and a modern stainless face, it fits seamlessly into compatible Marquis Spas models while upgrading the visual look and feel of your tub.
HK16 Rotary Jet Power in the 320-6784 Stainless and Gray Insert
The HK16 rotary action built into the 320-6784 Marquis jet insert creates a dynamic, rotating massage. This design is ideal for improving circulation and relieving tension in the back and shoulders. The balanced water flow ensures consistent pressure, making it a favorite for hydrotherapy.
Installation and Compatibility for the Marquis Spas 320-6784 Jet
The 320-6784 is a snap-in style insert that installs easily with minimal effort. It’s intended for Marquis Spas that originally used the HK16 series jet and is fully compatible with systems that require a 4.5-inch rotary-style insert.
If your current jet is producing weak water flow or spinning improperly, this replacement restores proper operation and helps prevent unnecessary strain on your spa pump.
Features of the 320-6784 Marquis Spas Jet Insert
- 4.5-inch rotary jet insert
- HK16 series rotary motion
- Stainless steel and gray face finish
- Snap-in connection for easy installation
- OEM Marquis Spas replacement part
Maintain Jet Performance with the HK16 Marquis Insert
Over time, spa jet inserts wear down due to chemicals, heat, and regular use. The 320-6784 Marquis Spas jet insert is built from durable materials that resist degradation, helping your spa jets maintain optimal performance for longer.
Routine replacement of aging jet inserts ensures your spa operates smoothly and provides the relaxing hydrotherapy you expect from a premium system.

