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1st Check Repair Kit

SKU: 4A-00H-03
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This is a first check module for 10-12" Apollo/Conbraco 4A Series reduced pressure zone (RPZ) backflow preventers. This complete check assembly is designed to replace the first check. Cover O-Ring included. Genuine Apollo parts, made in U.S.A. No special tools are required for service.

This product can expose you to chemicals, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

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