These Balboa heaters distinguish themselves as they are held in with two fixing studs, one at the top and one underneath. Specific for Plastic Balboa Packs. They can be quickly identified as it comes complete with 2 x M7 sensors (24" in length).
The 2Kw Balboa Heater sticker will say- 2Kw Balboa Heater - 240v 15" 2" 8251N - ref. 58145.
The 3KW Balboa Heater sticker will say- 3KW Balboa Heater - 58118 - 240v 15" 2" 8251N. Identical to Balboa 58122 (Leisure Bay Spas).
You may have another number that we can cross ref. as numerous manufacturers use this heater but with a different product codes - if this is the case it is best to ring 0844 800 3290 for assistance.

Length: 15 inches
Diameter: 2 inches
Distance Between terminals: 1.25 inches
Complete length (inc. uniona): 19.5 inches


2Kw - Suits GS500, 500Z, 501, 501Z systems, spa specific it fits many including Spaform, Hydrospa, Canadian, Aegean, Catalina, Hydropool, , Marquis Spa, , Leisurite, Leisure Bay, Signature Spas, Hot Tubs Direct.
3Kw - GS500, 500Z, 501, 501Z (3.0KW only), 501SZ, 510, 510S, 510Z, 510SZ, 511SZ, 523DZ, GL2000 mach 3, GL2001 mach 3 systems), spa specific it fits many including Spaform, Hydrospa, Canadian, Aegean, Catalina, Hydropool, , Marquis Spa, , Leisurite, Leisure Bay, Signature Spas, Hot Tubs Direct.


The 2Kw Balboa Heater sticker will say- 2Kw Balboa Heater - 240v 15" 2" 8251N - ref. 58145.
The 3KW Balboa Heater sticker will say- 3KW Balboa Heater - 58118 - 240v 15" 2" 8251N. Identical to Balboa 58122 (Leisure Bay Spas).
You may have another number that we can cross ref. as numerous manufacturers use this heater but with a different product codes - if this is the case it is best to ring 0844 800 3290 for assistance.

Length: 15 inches
Diameter: 2 inches
Distance Between terminals: 1.25 inches
Complete length (inc. uniona): 19.5 inches

| KW: 2.0 Required flow rate: 21 GPM. Amps: 8.0-8.5 Volts: 230 Hz: 50 |
KW: 3.0 Required flow rate: 21 GPM. Amps: 11.5-12.0 Volts: 230 Hz: 50 |

2Kw - Suits GS500, 500Z, 501, 501Z systems, spa specific it fits many including Spaform, Hydrospa, Canadian, Aegean, Catalina, Hydropool, , Marquis Spa, , Leisurite, Leisure Bay, Signature Spas, Hot Tubs Direct.
3Kw - GS500, 500Z, 501, 501Z (3.0KW only), 501SZ, 510, 510S, 510Z, 510SZ, 511SZ, 523DZ, GL2000 mach 3, GL2001 mach 3 systems), spa specific it fits many including Spaform, Hydrospa, Canadian, Aegean, Catalina, Hydropool, , Marquis Spa, , Leisurite, Leisure Bay, Signature Spas, Hot Tubs Direct.

This heater can be used in replacement for the following units:
Balboa M7 Heater with Studs - 2Kw (GS-GL) (15") 58115, 58115-01, 58145
Balboa M7 Heater with Studs - 3Kw (GS-GL) (15") 58107, 58118, 58141




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