Dometic Toilet Vacuum Breaker Kit | 385230335 | Hand Sprayer

Add hand sprayer functionality to your Dometic RV toilet with the Dometic 385230335 Toilet Vacuum Breaker Kit. This genuine Dometic OEM kit integrates with your existing toilet system to enable hand sprayer operation — providing the critical vacuum break protection that prevents backflow contamination between the toilet system and your RV's fresh water supply. The right component for buyers upgrading their toilet with a hand sprayer or replacing a failed vacuum breaker on Sealand, Traveler, or VacuFlush toilets.

What a Vacuum Breaker Does

The vacuum breaker is a small but critical safety component in your RV toilet's plumbing:

• Prevents backflow contamination from the toilet back into the fresh water supply
• Maintains separation between the toilet's flush water and the rest of your RV's plumbing
• Required component when adding hand sprayer functionality (which connects the toilet directly to the fresh water line)
• Protects hygiene by ensuring water only flows one direction through the system

Without a functioning vacuum breaker, hand sprayer installations create a potential cross-contamination risk. The 385230335 is the component that makes hand sprayer additions safe and code-compliant.

For Dometic Toilets with (or Adding) Hand Sprayer Option

The 385230335 is engineered for use on the following Dometic toilet models with hand sprayer functionality:

• Dometic 210 Traveler Lite
• Dometic 301 Low Profile
• Dometic 310 China Model

Verify your existing toilet model on the manufacturer label before ordering.

Replaces Vacuum Breaker on Sealand, Traveler, and VacuFlush Toilets

Beyond initial installation, the 385230335 also serves as a direct vacuum breaker replacement on:

• Dometic Sealand toilet systems
• Dometic Traveler toilets
• Dometic VacuFlush toilets

If your existing vacuum breaker has failed (signs include leaks, persistent backflow, or hand sprayer pressure issues), this kit is the genuine Dometic OEM replacement.

Adding Hand Sprayer Functionality?

If you're upgrading an existing Dometic toilet to add hand sprayer capability, the 385230335 is the required vacuum breaker for safe, code-compliant installation. The hand sprayer connects the toilet to the fresh water supply line, which creates the backflow contamination risk that this vacuum breaker is designed to prevent.

Need the Complete Hand Sprayer Kit Instead?

If you're starting from scratch — adding hand sprayer functionality to a toilet that doesn't currently have it — and need the sprayer, hose, brackets, AND vacuum breaker all in one purchase, see the Dometic 385319054 Complete Vacuum Breaker + Hand Sprayer Kit instead. The 385319054 includes the vacuum breaker plus the hand sprayer, hose, brackets, and all installation hardware — fits a broader range of Dometic, Sealand, and Traveler pedal flush toilets (Series 100, 200, 300, 310, 320, 500 Plus, 700, 900, 2000, 3000, 3200, 3300, 3400).

This 385230335 listing is for the vacuum breaker component alone — the right pick when you already have the sprayer and only need to replace the vacuum breaker.

Have the Vacuum Breaker, Need the Hand Sprayer?

If you already have a functioning vacuum breaker in place and need just the hand sprayer components (sprayer + hose), see the Dometic 385311124 Hand Spray Kit — fits Dometic 110, 111, 210, 300, 301, 310, 511 PLUS, 910, and 2010 series toilets. Pairs with this 385230335 vacuum breaker to complete a hand sprayer installation.

Have an OLDER Dometic Toilet Instead?

If your toilet is an older Dometic model — including the original 510, 511 (not the Plus generation), or other pre-2000s Dometic/Sealand/VacuFlush/Traveler toilets — and you need the complete hand sprayer + vacuum breaker WITH extension tube, see the Dometic 385319055 Vacuum Breaker with Extension + Hand Spray Kit. Engineered specifically for older toilet hand sprayer installations.

Common Failure Symptoms

Common reasons to replace the vacuum breaker include:

• Visible leaks at the vacuum breaker housing
• Reduced hand sprayer pressure
• Backflow issues from toilet to fresh water side
• Vacuum breaker visibly cracked or damaged
• Replacement during broader toilet service or hand sprayer installation

Steady Performance and Reliability

The 385230335 is engineered by Dometic for steady performance and reliability in RV toilet environments — built to handle the pressure cycling, moisture, and vibration typical of mobile applications.

Low-Profile Design

The kit features a low-profile design — important for installations where space behind or beneath the toilet is limited, as is common in RV bathroom layouts.

Easy Installation with Hardware Included

The 385230335 is engineered for straightforward installation:

• Mounting hardware included
• Drop-in fit for compatible Dometic toilet installations
• Easy to install — straightforward replacement or initial installation

⚠️ Professional Installation Recommended

Toilet plumbing modifications involve working with fresh water supply lines, vacuum breaker integration, and potential cross-contamination risks. Installation should be performed by a qualified RV service technician for code-compliant, leak-free results — particularly when adding hand sprayer functionality where backflow protection is critical for fresh water safety.

Genuine Dometic OEM Replacement

As a Dometic factory replacement part, the 385230335 is built to original specifications for a precise drop-in fit on compatible Dometic toilet systems.

Key Features

• Genuine Dometic OEM toilet vacuum breaker kit
• For toilets with (or adding) hand sprayer option
• For Dometic 210 Traveler Lite, 301 Low Profile, 310 China toilets
• Replacement vacuum breaker for Sealand, Traveler, and VacuFlush toilets
• Prevents backflow contamination — critical hygiene protection
• Low-profile design for space-constrained RV installations
• Mounting hardware included
• Easy to install
• Developed for steady performance and reliability

Specifications

• Brand: Dometic
• Part Number: 385230335
• Type: Toilet Vacuum Breaker Kit (for Hand Sprayer Installation)
• Application: Adding hand sprayer functionality OR replacing vacuum breaker on compatible Dometic toilets
• Compatible Toilet Models: Dometic 210 Traveler Lite, 301 Low Profile, 310 China Model
• Also Replaces Vacuum Breaker On: Dometic Sealand, Traveler, VacuFlush toilet systems
• Profile: Low-profile design
• Mounting Hardware: Included