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The Watts 0858546 AS-MB Series 3/4 inch FPT microbubble air separator efficiently removes entrained air from hydronic heating systems. It features a high-capacity DuoVent air vent assembly and durable brass coalescing media. With a 1/2 inch FPT bottom tapping, it's compatible with boiler fill fittings. The PPSU coalescing media withstands petroleum-based cleaners, glycol antifreeze, and temperatures up to 240°F.
Enhances hydronic system efficiency and longevity by ensuring effective air removal. It does not require laminar flow for efficient separation and elimination of entrained air.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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