Jabsco 44411 Series Water Pressure Regulator, 45 PSI, Backflow Preventer, Port Strainer

Overview

The Jabsco 44411 Series is a range of 45 psi water pressure regulators for protecting onboard fresh water plumbing when a boat is connected to dockside city water. It reduces high, unregulated inlet pressure from a marina spigot or campground supply to a safer outlet pressure for the boat’s water system.

This regulator is a practical fit for boats that use a shore water connection and need pressure control before water reaches fixtures, valves, hose runs, and appliances. The range includes an in-line version for hose-to-hose connection and flush-mount versions for a permanent city water entry on the vessel.

A built-in backflow preventer helps protect the supply from cross contamination, while the removable port strainer catches pipe scale and debris before it enters the onboard plumbing. The flush-mount versions also include a dust cap for the external inlet.

Key features

• Automatically reduces unregulated city water pressure to 45 psi for safer connection to onboard fresh water plumbing.
• Handles high inlet pressure from dockside water supplies, with references for the range commonly listing city water pressure up to 125 psi.
• Built-in backflow preventer helps protect against reverse flow at the shore water connection.
• Removable port strainer helps keep pipe scale and debris away from valves and seal seats.
• Available as an in-line regulator for garden hose connection or as a flush-mount water entry for permanent installation.
• In-line model uses 3/4 garden hose thread female inlet and 3/4 garden hose thread male outlet connections.
• Flush-mount models use a garden hose inlet with a 1/2-14 pipe outlet for connection into the vessel’s plumbing.
• Flush-mount versions include a dust cap to cover the inlet when shore water is not connected.

Variants

The product is offered in three configurations that change how the regulator mounts and connects to the vessel’s water system.

The pressure-regulating function remains centered on a 45 psi outlet, while the installation format changes between a temporary in-line hose connection and a permanent flush-mount city water entry.

• 44411-0045: In-line mounting style with 3/4 garden hose thread female x 3/4 garden hose thread male connection. This version fits between hose connections, making it useful when the boat needs pressure control without adding a permanent deck or bulkhead inlet.
• 44411-1045: Flush-mount mounting style with garden hose x 1/2-14 pipe connection. This version is made for a fixed shore water entry, with the pipe outlet tying into the onboard fresh water plumbing behind the mounting surface.
• 44411-2045: Flush-mount mounting style with chrome finish. This version gives the same permanent entry style with a chrome face for installations where the visible hardware needs to match other exterior fittings.

Installation and setup

For an in-line installation, the regulator is placed between the dockside hose and the boat’s water inlet using garden hose thread connections. For flush-mount installations, the regulator mounts in the vessel structure and connects to the boat’s plumbing from the outlet side.

Install the regulator where the strainer can be reached for cleaning. On flush-mount installations, the exterior inlet should be positioned where a shore water hose can be connected without sharp bends or strain on the fitting.

Use on board

This range suits boats that spend time connected to marina water and need a controlled shore water feed instead of relying only on the onboard pressure pump and tank. It is especially relevant for cruisers, liveaboard use, and dockside service where city water pressure can vary from one hookup to another.

Because it regulates before water moves through the boat’s plumbing, it helps reduce stress on fixtures, hoses, valves, and connected appliances when shore water pressure is higher than the system should see.

Maintenance and care

Check and clean the removable strainer as part of routine fresh water system maintenance, especially after connecting to unfamiliar dockside supplies. Debris in shore water can restrict flow or interfere with sealing surfaces if it is allowed to pass into the system.

When a flush-mount inlet is not in use, keep the dust cap in place to help keep dirt and spray away from the connection point.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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