FREE SHIPPING OVER $79.00* - Save $$ by Buying 6 or More for Jets, Filters & Fittings.

100% Australian Owned & Operated - The Experts in Spa Parts & Pool Heaters

More Physical Stock Than Anyone - Shipping from Vic, NSW, Qld, WA. Over 100,000 products!

Waterco Portapac Mk4 - Replaces Mk 1, Mk 2, Mk 3 - All-In-One Kit

Tax included Shipping calculated at checkout.


Waterco Portapac MkIV all-in-one pump & control systems have had several iterations, modifications, changes, upgrades, etc over the years. This is the MK4 version, which comes with a 1HP or 1.5HP pump and heater. Also has the ability to run a second 240V blower or light. Suitable for 4-10 jets. 


Waterco Portapacs have built-in electric heaters and electronic controls. The Portapac circulates water through the spa jets as well as heating the water. Manually adjust temperature, and controlled by air button. 

Electronic 10Amp MK4 (Old codes 4555140, 45551403, 4555100E)

  • Pump = 1.0hp
  • Heater = 1.6kW

Portapac Demand - Electronic 15Amp MK4 (old code 45551413)

  • Pump = 1.5hp 
  • Heater = 2.4kW


  • Air button controlled
  • 10 amp supply or 15 Amp Supply
  • Heater 1.6kW (10A) or 2.4Kw (15A)

Replaces all original Waterco Portapac MK1 MK2 MK3 MK4

(4555140, 4555141, 45551403, 45551413)

1-Year Warranty - Excludes Corrosion. The biggest killer of these is due to over-chlorination / over-bromination causing leaks through the heater seal. 

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information. Major Credit Cards, PayPal, ApplePay, GooglePay accepted.

  • Identifying Parts

    Before making a phone call, the fastest way to identify parts is to send photos of the Front, Back, Sides along with any Measurements.

    Use the Contact Us form to upload from a Phone, Tablet or Computer.

  • Technical Support

    For Technical Queries, please use the Contact Form. Please include as much information as possible.

    We also have a range of manuals available.

    Electrical & gas work must be performed by a licensed & experienced person.

  • Heater and Spa Parts - Australia's Biggest & Fastest Shipper of Spa Parts & Pool Heaters

    About Us

    100% Australian Owned & Operated. A real, physical store, with shipping from Vic, NSW, Qld, & WA.

    We carry more stock of spa parts & pool heaters and ship faster than anyone!

    Ex-employees of the biggest manufacturers and distributors, so we know what we're talking about!