For All Your Pumping Requirements.
Buying from TF Pumps You’re buying from a UK business investing in more responsible operations, including 80 on-site solar panels at our Derby HQ.Jabsco Q401J-115S-3A 1/2" Par Max HD 4 Pressure-Controlled Pump 15 LPM | 12 Volt
Model: ParMax | Q401J-115S-3A
The Jabsco Par-Max HD4 Heavy-Duty Marine Freshwater Delivery Pump (Model Q401J-115S-3A 1/2) is a robust, 12-volt diaphragm pump engineered for demanding marine water systems. Delivering up to 4 GPM (15.1 L/min), this pump offers seamless, on-demand performance via its integrated, sealed pressure switch. With a heavy-duty build featuring a fiber-reinforced polypropylene upper housing and cast aluminum lower housing, the pump ensures exceptional durability. It is self-priming, can run dry without damage, and includes a built-in bypass to reduce cycling for smoother flow—all wrapped in a quiet, efficient design.
Applications
- Marine freshwater systems — ideal for galley faucets, showers, and washdown stations
- Boats and caravans — provides reliable freshwater delivery for multi-outlet systems
- General-purpose water transfer — well-suited for applications needing pressure and flow control in compact spaces, such as camper or mobile water systems.
Specifications
| Brand | Jabsco |
| Range | Parmax |
| Max Flow Rate | 15.1 LPM | 4 USGPM |
| Self Priming Capability | 2.4 Metres |
| Temperature Range | 0 - 60°C | 32 - 140°F |
| Pump Size | 13mm | 1/2" |
| Port Fittings | 2 x 1/2" (13mm) Straight Hosebarb |
| Max Operating Pressure | 40 PSI | 2.8 bar |
| Max Inlet Pressure | 30 PSI | 2.1 bar |
| Voltage | 12v |
| Diaphragm Material | Santoprene |
| Check Valve Material | EPDM |
| Fuse Size | 15 (amp) |
| Packaged Dimensions | L:39.4 x H:15.2 x W:14 cm |
Shipping Information
Orders are typically dispatched within 1–2 working days unless otherwise stated. For UK deliveries, we use APC as our standard courier. International orders are shipped via DHL.
Please note that international customers are responsible for any applicable customs fees, import duties, or local taxes.
If you have any special shipping requirements or need more information, please contact us before placing your order.