Armstrong P/N 806026-001 spring coupler used with Armstrong S-25, S-25AB, S-35, S-35AB, H-32, H-32AB, H-41 and H-41AB
Also used with Bell & Gossett models 75 to 150, 1-1/2, 2, HV, and PR
Correct replacement for Lochinvar P/N ARM1006
Shaft size is 1/2" x 1/2"
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