Aquaflo Circ-Master HP - 1/15th HP - CMCP CMHP - Spa Circulation Pump - Emerson Circmaster

Aquaflo Circ-Master (CircMaster) CMHP/CMCP Spa Circulation Pump — discontinued in Australia after a long run. If you’re replacing a failed CircMaster, the options below are the closest “drop-in” style replacements we see most often.

Closest replacement options

1. Spatex SXC35 Circ (Universal)
   Budget-friendly and often the easiest swap. Supplied as a semi-universal replacement (split-nut union style). In many installs it lines up without replumbing; if the pipework is tight, gentle heat (heat gun) can help you gain a few mm of movement.
2. Gecko Maelstrom CMS-1
   Premium/quiet option. Often fits well, but some spas need minor replumbing depending on the original pump position and pipe alignment.

Tip: “No replumbing” depends on your exact spa and how much flex you have in the existing pipework. If the plumbing is rigid, expect minor changes.

Before you buy: quick fitment checklist

• Orientation/space: Check whether your suction and discharge line up (some replacements may rotate differently and need small plumbing adjustments).
• Cord/plug type: Many circ pumps use an AMP style plug/lead to the spa control system. If you’re unsure, match what you have or contact us with a photo of your plug.

Archived information (CircMaster CMHP/CMCP)

Note: This section is for identification, specs, and cross-referencing only.

• Type: 24-hour spa circulation pump designed for continuous filtration duty.
• Typical electrical (varies by version): 220–240V, 50Hz, ~1425RPM, ~0.62A, around ~140W class.
• Capacitor: often ~6µF (check your motor label).
• Unions/leads: commonly supplied with AMP lead (~2–2.4m) on many spa configurations.

Compliance note (AU): If you’re shopping elsewhere, make sure any electrical pump supplied into Australia is properly approved/compliant. Non-approved units can be a safety and insurance headache.

Owner’s Manual (PDF)

CircMaster spare parts

• Plumbing barrel unions
• Impellers (search)
• Mechanical seal
• Casing / body O-ring

Want us to confirm the best replacement? Email us a photo of your pump’s rating plate + a couple of wide photos showing the plumbing/space around the pump (especially the suction/discharge alignment).