this part is specifically for natural gas burner systems

Key Benefits Specifically calibrated for an outlet pressure range of 5-15" w

most other compatible series units utilize two gaskets for a complete valve bracket overhaul

For contractors performing routine maintenance

McDonnell & Miller 302500 Gasket this part is specifically forThe McDonnell & Miller 302500, also identified by model number CO 11, is a high performance Sylphon base gasket engineered for a precise seal in steam and hydronic applications. Designed specifically for compatibility with Series 63 and E 28 low water cut offs, this six hole replacement component facilitates a leak proof interface between the bellows assembly and the float head chamber. In the field, maintaining the integrity of the LWCO replacement