Conbraco Industries 4A-505-A2F Breaker L99H008 These filters are fully backward

These filters are fully backward compatible with existing TFM cabinets and the newer Trane QuikBox cabinets found on S-Series furnaces

For contractors spec'ing out reliable hydronic control

it eliminates the need for two separate exterior holes

or audible indicators such as grinding

Conbraco Industries 4A-505-A2F Breaker L99H008 These filters are fully backwardThe Conbraco 4A 505 A2F Breaker, also known as the Apollo PVB4A, is a 1 inch pressure vacuum breaker engineered for reliable backflow prevention in potable water systems. Built with a heavy duty bronze body, this assembly includes integrated Apollo ball valves featuring stainless steel handles and nuts to resist atmospheric corrosion in the field. The internal design utilizes a modular check valve cartridge with a captured stainless steel spring and a