SEAFLO Pumps for Motorhomes, Caravans, Marine & RVs

If you’ve been fitting Shurflo Trail King pumps out of habit, it’s time to look at SEAFLO. These pumps match or beat Shurflo on every key spec. Flow rates are higher. Shut-off pressure is higher. The operation is quieter. And the price is lower.

Shurflo Trail King Pump Alternatives

The difference comes down to design. SEAFLO uses a five-chamber diaphragm. Shurflo’s Trail King uses three. More chambers means smoother flow, less pump cycling, and less water hammer noise in your pipes.

SEAFLO is ISO 9001 certified and supplies marine and RV water systems in over 100 countries. Their pumps are built for bilge use, ocean crossings, and commercial vehicles. That means they’re more than capable of running a motorhome sink and shower.

Choosing the right model is straightforward. The 33 Series is a direct replacement for the Shurflo Trail King. It uses the same fittings and fits the same space. The 42 Series delivers 55 PSI and 11.3 LPM. It suits longer pipe runs and multi-outlet setups. The 51 Series handles high-demand installations at 60 PSI. Despite the power, it runs almost silently.

Shop SEAFLO Pumps from Thermo Technica

Thermo Technica stocks the full SEAFLO range. This includes diaphragm water pumps, bilge pumps, washdown kits, and submersible pumps. Click & Collect is available from our Newton Abbot warehouse.

Not sure which SEAFLO pump replaces your Shurflo? Our technical team will help you find the right match.

Showing 1–12 of 17 resultsSorted by popularity

  • Best Seller
    SEAFLO 22 Series 12V Water Pump – 5 LPM, 17–60 PSI
    £41.66
  • Out of Stock
    SEAFLO 14A Series Low Profile Automatic Bilge Pump – 1100 GPH 12V (Water Level Sensing)
    £29.99
  • Out of Stock
    SEAFLO 33 Series 12V Automatic Demand Diaphragm Pump – 11.3 LPM 45 PSI
    £48.33
  • Only 5 Left
    SEAFLO 42 Series 12V Water Pump – 11.3 LPM, 55 PSISEAFLO 42 Series 12V Water Pump – 11.3 LPM, 55 PSI
    £56.66
  • Best Seller
    Seaflo Submersible Pump 280 g/h 18 l/min 12v
    £26.66
  • Out of Stock
    SEAFLO 12V Submersible & In-Line Pump – 500 GPH / 30 LPM
    £20.83
  • Seaflo Water Pressure System-33 Series-01
    £83.33
  • SEAFLO 12V Diaphragm Pressure Pump – 4 GPM (15 LPM) 60 PSI
    £62.49
  • SEAFLO Automatic Bilge Pump with Integrated Float Switch – 12V 750 GPH
    £20.83
  • SEAFLO Accumulator Tank 0.75L – 10–125 PSI
    £14.99
  • SEAFLO 22 Series 12V Water Pump – 5 LPM, 17–60 PSI
    £49.99
  • Out of Stock
    SEAFLO 33 Series 24V Automatic Demand Diaphragm Pump
    £49.16