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Since87 · 09-12-2003, 10:44 PM

One thing to keep in mind, is that Cathar is in Oz with 50 Hz power. Look at the difference in head specs for the pumps in the image above.

In North America with 60 Hz power, the MD20-RZ has 86% of the head rating of the MD30-RZ with 50 Hz power.

09-12-2003, 10:44 PM	#19
Since87 Pro/Guru - Uber Mod Join Date: Sep 2002 Location: Indiana Posts: 834	One thing to keep in mind, is that Cathar is in Oz with 50 Hz power. Look at the difference in head specs for the pumps in the image above. In North America with 60 Hz power, the MD20-RZ has 86% of the head rating of the MD30-RZ with 50 Hz power.